diff --git a/Cargo.lock b/Cargo.lock
index 8032c2e42d..12521e9c75 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -4317,6 +4317,7 @@ dependencies = [
  "flexbuffers",
  "futures-util",
  "getrandom",
+ "hashbrown 0.15.0",
  "humansize",
  "itertools 0.13.0",
  "lazy_static",
@@ -4670,7 +4671,6 @@ dependencies = [
 name = "vortex-serde"
 version = "0.12.0"
 dependencies = [
- "ahash",
  "arrow",
  "arrow-array",
  "arrow-buffer",
diff --git a/Cargo.toml b/Cargo.toml
index 486d40e31c..e37af64879 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -43,7 +43,6 @@ readme = "README.md"
 categories = ["database-implementations", "data-structures", "compression"]
 
 [workspace.dependencies]
-ahash = "0.8.11"
 allocator-api2 = "0.2.16"
 anyhow = "1.0"
 arbitrary = "1.3.2"
diff --git a/bench-vortex/benches/compressor_throughput.rs b/bench-vortex/benches/compressor_throughput.rs
index 812b54b836..6069d735a9 100644
--- a/bench-vortex/benches/compressor_throughput.rs
+++ b/bench-vortex/benches/compressor_throughput.rs
@@ -1,9 +1,8 @@
-use std::collections::HashSet;
-
 use criterion::{black_box, criterion_group, criterion_main, BatchSize, Criterion, Throughput};
 use itertools::Itertools as _;
 use mimalloc::MiMalloc;
 use rand::{Rng, SeedableRng as _};
+use vortex::aliases::hash_set::HashSet;
 use vortex::array::PrimitiveArray;
 use vortex::compute::unary::try_cast;
 use vortex::validity::Validity;
diff --git a/bench-vortex/benches/datafusion.rs b/bench-vortex/benches/datafusion.rs
index 8cd5837159..ef2ef649d0 100644
--- a/bench-vortex/benches/datafusion.rs
+++ b/bench-vortex/benches/datafusion.rs
@@ -1,4 +1,3 @@
-use std::collections::HashSet;
 use std::sync::Arc;
 
 use arrow_array::builder::{StringBuilder, UInt32Builder};
@@ -13,6 +12,7 @@ use datafusion::functions_aggregate::count::count_distinct;
 use datafusion::logical_expr::lit;
 use datafusion::prelude::{col, DataFrame, SessionContext};
 use lazy_static::lazy_static;
+use vortex::aliases::hash_set::HashSet;
 use vortex::compress::CompressionStrategy;
 use vortex::encoding::EncodingRef;
 use vortex::{Array, Context};
diff --git a/bench-vortex/src/bin/tpch_benchmark.rs b/bench-vortex/src/bin/tpch_benchmark.rs
index 7baf437231..e532364b59 100644
--- a/bench-vortex/src/bin/tpch_benchmark.rs
+++ b/bench-vortex/src/bin/tpch_benchmark.rs
@@ -1,4 +1,3 @@
-use std::collections::HashMap;
 use std::process::ExitCode;
 use std::sync;
 use std::time::SystemTime;
@@ -12,6 +11,7 @@ use futures::future::try_join_all;
 use indicatif::ProgressBar;
 use itertools::Itertools;
 use prettytable::{Cell, Row, Table};
+use vortex::aliases::hash_map::HashMap;
 
 #[derive(Parser, Debug)]
 #[command(version, about, long_about = None)]
diff --git a/bench-vortex/src/lib.rs b/bench-vortex/src/lib.rs
index ae31a42d24..23d956f1e1 100644
--- a/bench-vortex/src/lib.rs
+++ b/bench-vortex/src/lib.rs
@@ -1,6 +1,5 @@
 #![feature(exit_status_error)]
 
-use std::collections::HashSet;
 use std::env::temp_dir;
 use std::fs::{create_dir_all, File};
 use std::future::Future;
@@ -13,6 +12,7 @@ use lazy_static::lazy_static;
 use log::LevelFilter;
 use parquet::arrow::arrow_reader::ParquetRecordBatchReaderBuilder;
 use simplelog::{ColorChoice, Config, TermLogger, TerminalMode};
+use vortex::aliases::hash_set::HashSet;
 use vortex::array::ChunkedArray;
 use vortex::arrow::FromArrowType;
 use vortex::compress::CompressionStrategy;
diff --git a/bench-vortex/src/public_bi_data.rs b/bench-vortex/src/public_bi_data.rs
index c54729f48c..b7d0802d46 100644
--- a/bench-vortex/src/public_bi_data.rs
+++ b/bench-vortex/src/public_bi_data.rs
@@ -1,4 +1,3 @@
-use std::collections::HashMap;
 use std::hash::Hash;
 use std::os::unix::fs::MetadataExt;
 use std::path::PathBuf;
@@ -10,6 +9,7 @@ use itertools::Itertools;
 use log::info;
 use reqwest::Url;
 use tokio::fs::File;
+use vortex::aliases::hash_map::HashMap;
 use vortex::array::ChunkedArray;
 use vortex::{Array, ArrayDType, ArrayTrait, IntoArray};
 use vortex_error::VortexResult;
diff --git a/bench-vortex/src/reader.rs b/bench-vortex/src/reader.rs
index 23eb7c2bfd..e42bac10a3 100644
--- a/bench-vortex/src/reader.rs
+++ b/bench-vortex/src/reader.rs
@@ -1,4 +1,3 @@
-use std::collections::HashMap;
 use std::fs::File;
 use std::ops::Range;
 use std::path::{Path, PathBuf};
@@ -23,6 +22,7 @@ use parquet::arrow::ParquetRecordBatchStreamBuilder;
 use parquet::file::metadata::RowGroupMetaData;
 use serde::{Deserialize, Serialize};
 use stream::StreamExt;
+use vortex::aliases::hash_map::HashMap;
 use vortex::array::{ChunkedArray, PrimitiveArray};
 use vortex::arrow::FromArrowType;
 use vortex::compress::CompressionStrategy;
diff --git a/bench-vortex/src/tpch/mod.rs b/bench-vortex/src/tpch/mod.rs
index 16aa3d4cd8..4daef6d3a6 100644
--- a/bench-vortex/src/tpch/mod.rs
+++ b/bench-vortex/src/tpch/mod.rs
@@ -1,4 +1,3 @@
-use std::collections::HashMap;
 use std::fmt::{Display, Formatter};
 use std::fs;
 use std::fs::create_dir_all;
@@ -12,6 +11,7 @@ use datafusion::datasource::MemTable;
 use datafusion::execution::object_store::ObjectStoreUrl;
 use datafusion::prelude::{CsvReadOptions, ParquetReadOptions, SessionContext};
 use tokio::fs::OpenOptions;
+use vortex::aliases::hash_map::HashMap;
 use vortex::array::{ChunkedArray, StructArray};
 use vortex::arrow::FromArrowArray;
 use vortex::variants::StructArrayTrait;
diff --git a/clippy.toml b/clippy.toml
index ec45db2dfe..40abeb8d8d 100644
--- a/clippy.toml
+++ b/clippy.toml
@@ -1,3 +1,7 @@
 allow-expect-in-tests = true
 allow-unwrap-in-tests = true
 single-char-binding-names-threshold = 2
+disallowed-types = [
+    "std::collections::HashMap",
+    "std::collections::HashSet",
+]
diff --git a/encodings/alp/src/alp_rd/mod.rs b/encodings/alp/src/alp_rd/mod.rs
index 8f6901c66e..0dfa5b288e 100644
--- a/encodings/alp/src/alp_rd/mod.rs
+++ b/encodings/alp/src/alp_rd/mod.rs
@@ -5,11 +5,11 @@ mod array;
 mod compute;
 mod variants;
 
-use std::collections::HashMap;
 use std::ops::{Shl, Shr};
 
 use itertools::Itertools;
 use num_traits::{Float, One, PrimInt};
+use vortex::aliases::hash_map::HashMap;
 use vortex::array::{PrimitiveArray, SparseArray};
 use vortex::{ArrayDType, IntoArray};
 use vortex_dtype::{DType, NativePType};
diff --git a/encodings/dict/src/stats.rs b/encodings/dict/src/stats.rs
index c153898c6b..3fcfd61fd1 100644
--- a/encodings/dict/src/stats.rs
+++ b/encodings/dict/src/stats.rs
@@ -1,5 +1,4 @@
-use std::collections::HashMap;
-
+use vortex::aliases::hash_map::HashMap;
 use vortex::stats::{ArrayStatistics, ArrayStatisticsCompute, Stat, StatsSet};
 use vortex_error::VortexResult;
 use vortex_scalar::Scalar;
diff --git a/encodings/roaring/src/boolean/mod.rs b/encodings/roaring/src/boolean/mod.rs
index b2de436f2a..665969d497 100644
--- a/encodings/roaring/src/boolean/mod.rs
+++ b/encodings/roaring/src/boolean/mod.rs
@@ -1,4 +1,3 @@
-use std::collections::HashMap;
 use std::fmt::{Debug, Display};
 
 use arrow_buffer::{BooleanBuffer, MutableBuffer};
@@ -6,6 +5,7 @@ pub use compress::*;
 use croaring::Native;
 pub use croaring::{Bitmap, Portable};
 use serde::{Deserialize, Serialize};
+use vortex::aliases::hash_map::HashMap;
 use vortex::array::visitor::{AcceptArrayVisitor, ArrayVisitor};
 use vortex::array::BoolArray;
 use vortex::encoding::ids;
diff --git a/encodings/roaring/src/boolean/stats.rs b/encodings/roaring/src/boolean/stats.rs
index 5f62f20e3f..0af1b23b4e 100644
--- a/encodings/roaring/src/boolean/stats.rs
+++ b/encodings/roaring/src/boolean/stats.rs
@@ -1,6 +1,5 @@
-use std::collections::HashMap;
-
 use croaring::Bitset;
+use vortex::aliases::hash_map::HashMap;
 use vortex::stats::{ArrayStatisticsCompute, Stat, StatsSet};
 use vortex_error::{vortex_err, VortexResult};
 
diff --git a/fuzz/fuzz_targets/array_ops.rs b/fuzz/fuzz_targets/array_ops.rs
index b6040e4b7b..e466990b8d 100644
--- a/fuzz/fuzz_targets/array_ops.rs
+++ b/fuzz/fuzz_targets/array_ops.rs
@@ -1,8 +1,7 @@
 #![no_main]
 
-use std::collections::HashSet;
-
 use libfuzzer_sys::{fuzz_target, Corpus};
+use vortex::aliases::hash_set::HashSet;
 use vortex::array::{
     BoolEncoding, PrimitiveEncoding, StructEncoding, VarBinEncoding, VarBinViewEncoding,
 };
diff --git a/vortex-array/Cargo.toml b/vortex-array/Cargo.toml
index 32ed554b62..f61b84a0d1 100644
--- a/vortex-array/Cargo.toml
+++ b/vortex-array/Cargo.toml
@@ -35,6 +35,7 @@ enum-iterator = { workspace = true }
 flatbuffers = { workspace = true, optional = true }
 flexbuffers = { workspace = true, optional = true }
 futures-util = { workspace = true }
+hashbrown = { workspace = true }
 humansize = { workspace = true }
 itertools = { workspace = true }
 lazy_static = { workspace = true }
diff --git a/vortex-array/src/aliases/hash_map.rs b/vortex-array/src/aliases/hash_map.rs
new file mode 100644
index 0000000000..68344d0976
--- /dev/null
+++ b/vortex-array/src/aliases/hash_map.rs
@@ -0,0 +1,3 @@
+pub type HashMap<K, V> = hashbrown::HashMap<K, V>;
+pub type Entry<'a, K, V, S> = hashbrown::hash_map::Entry<'a, K, V, S>;
+pub type IntoIter<K, V> = hashbrown::hash_map::IntoIter<K, V>;
diff --git a/vortex-array/src/aliases/hash_set.rs b/vortex-array/src/aliases/hash_set.rs
new file mode 100644
index 0000000000..7ad5f128f6
--- /dev/null
+++ b/vortex-array/src/aliases/hash_set.rs
@@ -0,0 +1,3 @@
+pub type HashSet<V> = hashbrown::HashSet<V>;
+pub type Entry<'a, V, S> = hashbrown::hash_set::Entry<'a, V, S>;
+pub type IntoIter<V> = hashbrown::hash_set::IntoIter<V>;
diff --git a/vortex-array/src/aliases/mod.rs b/vortex-array/src/aliases/mod.rs
new file mode 100644
index 0000000000..56aff2b86f
--- /dev/null
+++ b/vortex-array/src/aliases/mod.rs
@@ -0,0 +1,2 @@
+pub mod hash_map;
+pub mod hash_set;
diff --git a/vortex-array/src/array/bool/stats.rs b/vortex-array/src/array/bool/stats.rs
index 4c49264999..d9703bca4e 100644
--- a/vortex-array/src/array/bool/stats.rs
+++ b/vortex-array/src/array/bool/stats.rs
@@ -1,9 +1,8 @@
-use std::collections::HashMap;
-
 use arrow_buffer::BooleanBuffer;
 use vortex_dtype::{DType, Nullability};
 use vortex_error::VortexResult;
 
+use crate::aliases::hash_map::HashMap;
 use crate::array::BoolArray;
 use crate::stats::{ArrayStatisticsCompute, Stat, StatsSet};
 use crate::validity::{ArrayValidity, LogicalValidity};
diff --git a/vortex-array/src/array/constant/mod.rs b/vortex-array/src/array/constant/mod.rs
index 4adb816138..f267bd9aff 100644
--- a/vortex-array/src/array/constant/mod.rs
+++ b/vortex-array/src/array/constant/mod.rs
@@ -1,10 +1,10 @@
-use std::collections::HashMap;
 use std::fmt::Display;
 
 use serde::{Deserialize, Serialize};
 use vortex_error::{vortex_panic, VortexResult};
 use vortex_scalar::{Scalar, ScalarValue};
 
+use crate::aliases::hash_map::HashMap;
 use crate::array::visitor::{AcceptArrayVisitor, ArrayVisitor};
 use crate::encoding::ids;
 use crate::stats::{Stat, StatsSet};
diff --git a/vortex-array/src/array/constant/stats.rs b/vortex-array/src/array/constant/stats.rs
index 1cdb7911d3..2fd147d9cb 100644
--- a/vortex-array/src/array/constant/stats.rs
+++ b/vortex-array/src/array/constant/stats.rs
@@ -1,8 +1,7 @@
-use std::collections::HashMap;
-
 use vortex_error::VortexResult;
 use vortex_scalar::ScalarValue;
 
+use crate::aliases::hash_map::HashMap;
 use crate::array::constant::ConstantArray;
 use crate::stats::{ArrayStatisticsCompute, Stat, StatsSet};
 
diff --git a/vortex-array/src/array/primitive/stats.rs b/vortex-array/src/array/primitive/stats.rs
index ac7aadfa9f..fd0260b4b2 100644
--- a/vortex-array/src/array/primitive/stats.rs
+++ b/vortex-array/src/array/primitive/stats.rs
@@ -1,5 +1,4 @@
 use std::cmp::Ordering;
-use std::collections::HashMap;
 use std::mem::size_of;
 
 use arrow_buffer::buffer::BooleanBuffer;
@@ -9,6 +8,7 @@ use vortex_dtype::{match_each_native_ptype, DType, NativePType, Nullability};
 use vortex_error::VortexResult;
 use vortex_scalar::Scalar;
 
+use crate::aliases::hash_map::HashMap;
 use crate::array::primitive::PrimitiveArray;
 use crate::stats::{ArrayStatisticsCompute, Stat, StatsSet};
 use crate::validity::{ArrayValidity, LogicalValidity};
diff --git a/vortex-array/src/array/sparse/compute/take.rs b/vortex-array/src/array/sparse/compute/take.rs
index d2f97590b6..275f1a2fcb 100644
--- a/vortex-array/src/array/sparse/compute/take.rs
+++ b/vortex-array/src/array/sparse/compute/take.rs
@@ -1,10 +1,10 @@
-use std::collections::HashMap;
 use std::convert::identity;
 
 use itertools::Itertools;
 use vortex_dtype::match_each_integer_ptype;
 use vortex_error::VortexResult;
 
+use crate::aliases::hash_map::HashMap;
 use crate::array::primitive::PrimitiveArray;
 use crate::array::sparse::SparseArray;
 use crate::compute::{take, TakeFn};
diff --git a/vortex-array/src/array/varbin/stats.rs b/vortex-array/src/array/varbin/stats.rs
index 9cc892cf96..032bb1a5a0 100644
--- a/vortex-array/src/array/varbin/stats.rs
+++ b/vortex-array/src/array/varbin/stats.rs
@@ -1,11 +1,11 @@
 use std::cmp::Ordering;
-use std::collections::HashMap;
 
 use vortex_buffer::Buffer;
 use vortex_dtype::DType;
 use vortex_error::VortexResult;
 
 use crate::accessor::ArrayAccessor;
+use crate::aliases::hash_map::HashMap;
 use crate::array::varbin::{varbin_scalar, VarBinArray};
 use crate::stats::{ArrayStatisticsCompute, Stat, StatsSet};
 use crate::ArrayDType;
diff --git a/vortex-array/src/compress.rs b/vortex-array/src/compress.rs
index d089774166..de1f677d61 100644
--- a/vortex-array/src/compress.rs
+++ b/vortex-array/src/compress.rs
@@ -1,7 +1,6 @@
-use std::collections::HashSet;
-
 use vortex_error::VortexResult;
 
+use crate::aliases::hash_set::HashSet;
 use crate::encoding::EncodingRef;
 use crate::Array;
 
diff --git a/vortex-array/src/context.rs b/vortex-array/src/context.rs
index 9d30eca4b0..f4ac1f3260 100644
--- a/vortex-array/src/context.rs
+++ b/vortex-array/src/context.rs
@@ -1,5 +1,4 @@
-use std::collections::HashMap;
-
+use crate::aliases::hash_map::HashMap;
 use crate::array::{
     BoolEncoding, ChunkedEncoding, ConstantEncoding, ExtensionEncoding, NullEncoding,
     PrimitiveEncoding, SparseEncoding, StructEncoding, VarBinEncoding, VarBinViewEncoding,
diff --git a/vortex-array/src/encoding/mod.rs b/vortex-array/src/encoding/mod.rs
index 2672d39077..148854cc43 100644
--- a/vortex-array/src/encoding/mod.rs
+++ b/vortex-array/src/encoding/mod.rs
@@ -148,9 +148,8 @@ pub mod ids {
 
 #[cfg(test)]
 mod tests {
-    use std::collections::HashSet;
-
     use super::ids;
+    use crate::aliases::hash_set::HashSet;
 
     #[test]
     fn test_encoding_id() {
diff --git a/vortex-array/src/lib.rs b/vortex-array/src/lib.rs
index 4827dcb76b..2d554b99cc 100644
--- a/vortex-array/src/lib.rs
+++ b/vortex-array/src/lib.rs
@@ -35,6 +35,7 @@ use crate::validity::ArrayValidity;
 use crate::variants::ArrayVariants;
 
 pub mod accessor;
+pub mod aliases;
 pub mod array;
 pub mod arrow;
 mod canonical;
diff --git a/vortex-array/src/stats/statsset.rs b/vortex-array/src/stats/statsset.rs
index 71bf16e84a..6e3dadfc35 100644
--- a/vortex-array/src/stats/statsset.rs
+++ b/vortex-array/src/stats/statsset.rs
@@ -1,12 +1,10 @@
-use std::collections::hash_map::{Entry, IntoIter};
-use std::collections::HashMap;
-
 use enum_iterator::all;
 use itertools::Itertools;
 use vortex_dtype::DType;
 use vortex_error::{vortex_panic, VortexError, VortexExpect};
 use vortex_scalar::Scalar;
 
+use crate::aliases::hash_map::{Entry, HashMap, IntoIter};
 use crate::stats::Stat;
 
 #[derive(Debug, Clone, Default)]
diff --git a/vortex-expr/src/binary.rs b/vortex-expr/src/binary.rs
index d7979bc04f..2e35ace310 100644
--- a/vortex-expr/src/binary.rs
+++ b/vortex-expr/src/binary.rs
@@ -1,7 +1,7 @@
 use std::any::Any;
-use std::collections::HashSet;
 use std::sync::Arc;
 
+use vortex::aliases::hash_set::HashSet;
 use vortex::compute::{and, compare, or, Operator as ArrayOperator};
 use vortex::Array;
 use vortex_dtype::field::Field;
diff --git a/vortex-expr/src/column.rs b/vortex-expr/src/column.rs
index d663b9b095..7b4972b47b 100644
--- a/vortex-expr/src/column.rs
+++ b/vortex-expr/src/column.rs
@@ -1,6 +1,6 @@
 use std::any::Any;
-use std::collections::HashSet;
 
+use vortex::aliases::hash_set::HashSet;
 use vortex::array::StructArray;
 use vortex::variants::StructArrayTrait;
 use vortex::Array;
diff --git a/vortex-expr/src/lib.rs b/vortex-expr/src/lib.rs
index ab42e3ecb8..58e7c82b63 100644
--- a/vortex-expr/src/lib.rs
+++ b/vortex-expr/src/lib.rs
@@ -1,8 +1,9 @@
 use std::any::Any;
-use std::collections::HashSet;
 use std::fmt::Debug;
 use std::sync::Arc;
 
+use vortex::aliases::hash_set::HashSet;
+
 mod binary;
 mod column;
 pub mod datafusion;
diff --git a/vortex-expr/src/select.rs b/vortex-expr/src/select.rs
index e5dbad77e0..24dac4aa76 100644
--- a/vortex-expr/src/select.rs
+++ b/vortex-expr/src/select.rs
@@ -1,6 +1,6 @@
 use std::any::Any;
-use std::collections::HashSet;
 
+use vortex::aliases::hash_set::HashSet;
 use vortex::Array;
 use vortex_dtype::field::Field;
 use vortex_error::{vortex_err, VortexResult};
diff --git a/vortex-sampling-compressor/src/arbitrary.rs b/vortex-sampling-compressor/src/arbitrary.rs
index 35f273959f..340e3b16b7 100644
--- a/vortex-sampling-compressor/src/arbitrary.rs
+++ b/vortex-sampling-compressor/src/arbitrary.rs
@@ -1,14 +1,15 @@
-use std::collections::HashSet;
-
 use arbitrary::Error::EmptyChoose;
 use arbitrary::{Arbitrary, Result, Unstructured};
+use vortex::aliases::hash_set::HashSet;
 
 use crate::compressors::{CompressorRef, EncodingCompressor};
 use crate::{SamplingCompressor, DEFAULT_COMPRESSORS};
 
 impl<'a, 'b: 'a> Arbitrary<'a> for SamplingCompressor<'b> {
     fn arbitrary(u: &mut Unstructured<'a>) -> Result<Self> {
-        let compressors: HashSet<CompressorRef> = u.arbitrary()?;
+        #[allow(clippy::disallowed_types)]
+        let std: std::collections::HashSet<CompressorRef> = u.arbitrary()?;
+        let compressors: HashSet<CompressorRef> = HashSet::from_iter(std);
         if compressors.is_empty() {
             return Err(EmptyChoose);
         }
diff --git a/vortex-sampling-compressor/src/compressors/alp.rs b/vortex-sampling-compressor/src/compressors/alp.rs
index 442560e5f3..0c76046b38 100644
--- a/vortex-sampling-compressor/src/compressors/alp.rs
+++ b/vortex-sampling-compressor/src/compressors/alp.rs
@@ -1,5 +1,4 @@
-use std::collections::HashSet;
-
+use vortex::aliases::hash_set::HashSet;
 use vortex::array::PrimitiveArray;
 use vortex::encoding::EncodingRef;
 use vortex::{Array, ArrayDef, IntoArray};
diff --git a/vortex-sampling-compressor/src/compressors/alp_rd.rs b/vortex-sampling-compressor/src/compressors/alp_rd.rs
index 3dcf23ec4d..900cfd22c2 100644
--- a/vortex-sampling-compressor/src/compressors/alp_rd.rs
+++ b/vortex-sampling-compressor/src/compressors/alp_rd.rs
@@ -1,7 +1,7 @@
 use std::any::Any;
-use std::collections::HashSet;
 use std::sync::Arc;
 
+use vortex::aliases::hash_set::HashSet;
 use vortex::array::PrimitiveArray;
 use vortex::encoding::EncodingRef;
 use vortex::{Array, ArrayDef, IntoArray, IntoArrayVariant};
diff --git a/vortex-sampling-compressor/src/compressors/bitpacked.rs b/vortex-sampling-compressor/src/compressors/bitpacked.rs
index 98c6830539..dc5252ce5a 100644
--- a/vortex-sampling-compressor/src/compressors/bitpacked.rs
+++ b/vortex-sampling-compressor/src/compressors/bitpacked.rs
@@ -1,5 +1,4 @@
-use std::collections::HashSet;
-
+use vortex::aliases::hash_set::HashSet;
 use vortex::array::PrimitiveArray;
 use vortex::encoding::EncodingRef;
 use vortex::stats::ArrayStatistics;
diff --git a/vortex-sampling-compressor/src/compressors/chunked.rs b/vortex-sampling-compressor/src/compressors/chunked.rs
index 23ff730d17..f466faa6d6 100644
--- a/vortex-sampling-compressor/src/compressors/chunked.rs
+++ b/vortex-sampling-compressor/src/compressors/chunked.rs
@@ -1,8 +1,8 @@
 use std::any::Any;
-use std::collections::HashSet;
 use std::sync::Arc;
 
 use log::warn;
+use vortex::aliases::hash_set::HashSet;
 use vortex::array::{Chunked, ChunkedArray};
 use vortex::encoding::EncodingRef;
 use vortex::{Array, ArrayDType, ArrayDef, IntoArray};
diff --git a/vortex-sampling-compressor/src/compressors/constant.rs b/vortex-sampling-compressor/src/compressors/constant.rs
index 745ed84d81..fd4614cf63 100644
--- a/vortex-sampling-compressor/src/compressors/constant.rs
+++ b/vortex-sampling-compressor/src/compressors/constant.rs
@@ -1,5 +1,4 @@
-use std::collections::HashSet;
-
+use vortex::aliases::hash_set::HashSet;
 use vortex::array::{Constant, ConstantArray, ConstantEncoding};
 use vortex::compute::unary::scalar_at;
 use vortex::encoding::EncodingRef;
diff --git a/vortex-sampling-compressor/src/compressors/date_time_parts.rs b/vortex-sampling-compressor/src/compressors/date_time_parts.rs
index 072a12aec2..c7872f1e6f 100644
--- a/vortex-sampling-compressor/src/compressors/date_time_parts.rs
+++ b/vortex-sampling-compressor/src/compressors/date_time_parts.rs
@@ -1,5 +1,4 @@
-use std::collections::HashSet;
-
+use vortex::aliases::hash_set::HashSet;
 use vortex::array::TemporalArray;
 use vortex::encoding::EncodingRef;
 use vortex::{Array, ArrayDType, ArrayDef, IntoArray};
diff --git a/vortex-sampling-compressor/src/compressors/delta.rs b/vortex-sampling-compressor/src/compressors/delta.rs
index 17c2673563..2effbcbd0a 100644
--- a/vortex-sampling-compressor/src/compressors/delta.rs
+++ b/vortex-sampling-compressor/src/compressors/delta.rs
@@ -1,5 +1,4 @@
-use std::collections::HashSet;
-
+use vortex::aliases::hash_set::HashSet;
 use vortex::array::PrimitiveArray;
 use vortex::encoding::EncodingRef;
 use vortex::{Array, ArrayDef, IntoArray};
diff --git a/vortex-sampling-compressor/src/compressors/dict.rs b/vortex-sampling-compressor/src/compressors/dict.rs
index b42a6368df..8ce4c0136c 100644
--- a/vortex-sampling-compressor/src/compressors/dict.rs
+++ b/vortex-sampling-compressor/src/compressors/dict.rs
@@ -1,5 +1,4 @@
-use std::collections::HashSet;
-
+use vortex::aliases::hash_set::HashSet;
 use vortex::array::{Primitive, PrimitiveArray, VarBin, VarBinArray, VarBinView, VarBinViewArray};
 use vortex::encoding::EncodingRef;
 use vortex::stats::ArrayStatistics;
diff --git a/vortex-sampling-compressor/src/compressors/for.rs b/vortex-sampling-compressor/src/compressors/for.rs
index 816a5a4cc1..664fe9630f 100644
--- a/vortex-sampling-compressor/src/compressors/for.rs
+++ b/vortex-sampling-compressor/src/compressors/for.rs
@@ -1,5 +1,4 @@
-use std::collections::HashSet;
-
+use vortex::aliases::hash_set::HashSet;
 use vortex::array::PrimitiveArray;
 use vortex::encoding::EncodingRef;
 use vortex::stats::{trailing_zeros, ArrayStatistics};
diff --git a/vortex-sampling-compressor/src/compressors/fsst.rs b/vortex-sampling-compressor/src/compressors/fsst.rs
index 69e27ac3e8..38ff123d64 100644
--- a/vortex-sampling-compressor/src/compressors/fsst.rs
+++ b/vortex-sampling-compressor/src/compressors/fsst.rs
@@ -1,9 +1,9 @@
 use std::any::Any;
-use std::collections::HashSet;
 use std::fmt::Debug;
 use std::sync::Arc;
 
 use fsst::Compressor;
+use vortex::aliases::hash_set::HashSet;
 use vortex::array::{VarBin, VarBinArray, VarBinView};
 use vortex::encoding::EncodingRef;
 use vortex::{ArrayDType, ArrayDef, IntoArray};
diff --git a/vortex-sampling-compressor/src/compressors/mod.rs b/vortex-sampling-compressor/src/compressors/mod.rs
index 8ffd68dde3..0c6e378156 100644
--- a/vortex-sampling-compressor/src/compressors/mod.rs
+++ b/vortex-sampling-compressor/src/compressors/mod.rs
@@ -1,9 +1,9 @@
 use std::any::Any;
-use std::collections::HashSet;
 use std::fmt::{Debug, Display, Formatter};
 use std::hash::{Hash, Hasher};
 use std::sync::Arc;
 
+use vortex::aliases::hash_set::HashSet;
 use vortex::encoding::EncodingRef;
 use vortex::Array;
 use vortex_error::VortexResult;
diff --git a/vortex-sampling-compressor/src/compressors/roaring_bool.rs b/vortex-sampling-compressor/src/compressors/roaring_bool.rs
index 893157dcae..29fefd5fc5 100644
--- a/vortex-sampling-compressor/src/compressors/roaring_bool.rs
+++ b/vortex-sampling-compressor/src/compressors/roaring_bool.rs
@@ -1,5 +1,4 @@
-use std::collections::HashSet;
-
+use vortex::aliases::hash_set::HashSet;
 use vortex::array::Bool;
 use vortex::encoding::EncodingRef;
 use vortex::{Array, ArrayDType, ArrayDef, IntoArray, IntoArrayVariant};
diff --git a/vortex-sampling-compressor/src/compressors/roaring_int.rs b/vortex-sampling-compressor/src/compressors/roaring_int.rs
index 7f8b1d5c54..594c9ce45b 100644
--- a/vortex-sampling-compressor/src/compressors/roaring_int.rs
+++ b/vortex-sampling-compressor/src/compressors/roaring_int.rs
@@ -1,5 +1,4 @@
-use std::collections::HashSet;
-
+use vortex::aliases::hash_set::HashSet;
 use vortex::encoding::EncodingRef;
 use vortex::stats::ArrayStatistics;
 use vortex::{Array, ArrayDType, ArrayDef, IntoArray, IntoArrayVariant};
diff --git a/vortex-sampling-compressor/src/compressors/runend.rs b/vortex-sampling-compressor/src/compressors/runend.rs
index c99288e88b..360cd0c8bb 100644
--- a/vortex-sampling-compressor/src/compressors/runend.rs
+++ b/vortex-sampling-compressor/src/compressors/runend.rs
@@ -1,5 +1,4 @@
-use std::collections::HashSet;
-
+use vortex::aliases::hash_set::HashSet;
 use vortex::array::Primitive;
 use vortex::encoding::EncodingRef;
 use vortex::stats::ArrayStatistics;
diff --git a/vortex-sampling-compressor/src/compressors/sparse.rs b/vortex-sampling-compressor/src/compressors/sparse.rs
index be84c2d270..a845d6ecff 100644
--- a/vortex-sampling-compressor/src/compressors/sparse.rs
+++ b/vortex-sampling-compressor/src/compressors/sparse.rs
@@ -1,5 +1,4 @@
-use std::collections::HashSet;
-
+use vortex::aliases::hash_set::HashSet;
 use vortex::array::{Sparse, SparseArray, SparseEncoding};
 use vortex::encoding::EncodingRef;
 use vortex::{Array, ArrayDef, IntoArray};
diff --git a/vortex-sampling-compressor/src/compressors/struct_.rs b/vortex-sampling-compressor/src/compressors/struct_.rs
index 9225f68540..827deab87a 100644
--- a/vortex-sampling-compressor/src/compressors/struct_.rs
+++ b/vortex-sampling-compressor/src/compressors/struct_.rs
@@ -1,6 +1,5 @@
-use std::collections::HashSet;
-
 use itertools::Itertools;
+use vortex::aliases::hash_set::HashSet;
 use vortex::array::{Struct, StructArray};
 use vortex::encoding::EncodingRef;
 use vortex::variants::StructArrayTrait;
diff --git a/vortex-sampling-compressor/src/compressors/zigzag.rs b/vortex-sampling-compressor/src/compressors/zigzag.rs
index dc72042c23..aeb6974fee 100644
--- a/vortex-sampling-compressor/src/compressors/zigzag.rs
+++ b/vortex-sampling-compressor/src/compressors/zigzag.rs
@@ -1,5 +1,4 @@
-use std::collections::HashSet;
-
+use vortex::aliases::hash_set::HashSet;
 use vortex::array::PrimitiveArray;
 use vortex::encoding::EncodingRef;
 use vortex::stats::{ArrayStatistics, Stat};
diff --git a/vortex-sampling-compressor/src/lib.rs b/vortex-sampling-compressor/src/lib.rs
index b27c199628..6158399845 100644
--- a/vortex-sampling-compressor/src/lib.rs
+++ b/vortex-sampling-compressor/src/lib.rs
@@ -1,4 +1,3 @@
-use std::collections::HashSet;
 use std::fmt::{Debug, Display, Formatter};
 use std::sync::Arc;
 
@@ -10,6 +9,7 @@ use lazy_static::lazy_static;
 use log::{debug, warn};
 use rand::rngs::StdRng;
 use rand::SeedableRng;
+use vortex::aliases::hash_set::HashSet;
 use vortex::array::{ChunkedArray, Constant};
 use vortex::compress::{check_dtype_unchanged, check_validity_unchanged, CompressionStrategy};
 use vortex::compute::slice;
diff --git a/vortex-sampling-compressor/tests/smoketest.rs b/vortex-sampling-compressor/tests/smoketest.rs
index 7ea31f3313..ed012db6a2 100644
--- a/vortex-sampling-compressor/tests/smoketest.rs
+++ b/vortex-sampling-compressor/tests/smoketest.rs
@@ -1,7 +1,7 @@
-use std::collections::HashSet;
 use std::ops::Add;
 
 use chrono::TimeDelta;
+use vortex::aliases::hash_set::HashSet;
 use vortex::array::builder::VarBinBuilder;
 use vortex::array::{BoolArray, PrimitiveArray, StructArray, TemporalArray};
 use vortex::validity::Validity;
diff --git a/vortex-serde/Cargo.toml b/vortex-serde/Cargo.toml
index a175fd05b7..5798ac7aa9 100644
--- a/vortex-serde/Cargo.toml
+++ b/vortex-serde/Cargo.toml
@@ -14,7 +14,6 @@ categories = { workspace = true }
 readme = "README.md"
 
 [dependencies]
-ahash = { workspace = true }
 arrow-array = { workspace = true }
 arrow-buffer = { workspace = true }
 arrow-schema = { workspace = true }
diff --git a/vortex-serde/src/chunked_reader/take_rows.rs b/vortex-serde/src/chunked_reader/take_rows.rs
index eafc8874ab..98e2519916 100644
--- a/vortex-serde/src/chunked_reader/take_rows.rs
+++ b/vortex-serde/src/chunked_reader/take_rows.rs
@@ -1,9 +1,9 @@
-use std::collections::HashMap;
 use std::ops::Range;
 
 use bytes::BytesMut;
 use futures_util::{stream, StreamExt, TryStreamExt};
 use itertools::Itertools;
+use vortex::aliases::hash_map::HashMap;
 use vortex::array::{ChunkedArray, PrimitiveArray};
 use vortex::compute::unary::{subtract_scalar, try_cast};
 use vortex::compute::{search_sorted, slice, take, SearchSortedSide};
diff --git a/vortex-serde/src/layouts/pruning.rs b/vortex-serde/src/layouts/pruning.rs
index ed5701df12..c1882d7621 100644
--- a/vortex-serde/src/layouts/pruning.rs
+++ b/vortex-serde/src/layouts/pruning.rs
@@ -1,10 +1,9 @@
 // This code doesn't have usage outside of tests yet, remove once usage is added
 #![allow(dead_code)]
 
-use std::collections::hash_map::Entry;
 use std::sync::Arc;
 
-use ahash::{HashMap, HashMapExt};
+use vortex::aliases::hash_map::{Entry, HashMap};
 use vortex::stats::Stat;
 use vortex_dtype::field::Field;
 use vortex_dtype::Nullability;
@@ -222,7 +221,7 @@ fn stat_column_name(field: &Field, stat: Stat) -> Field {
 mod tests {
     use std::sync::Arc;
 
-    use ahash::HashMap;
+    use vortex::aliases::hash_map::HashMap;
     use vortex::stats::Stat;
     use vortex_dtype::field::Field;
     use vortex_expr::{BinaryExpr, Column, Literal, Operator, VortexExpr};
diff --git a/vortex-serde/src/layouts/read/cache.rs b/vortex-serde/src/layouts/read/cache.rs
index 3b1eba2e2d..3f6868ae63 100644
--- a/vortex-serde/src/layouts/read/cache.rs
+++ b/vortex-serde/src/layouts/read/cache.rs
@@ -1,9 +1,9 @@
 use std::sync::{Arc, RwLock};
 
-use ahash::HashMap;
 use bytes::Bytes;
 use flatbuffers::root_unchecked;
 use once_cell::sync::OnceCell;
+use vortex::aliases::hash_map::HashMap;
 use vortex_dtype::field::Field;
 use vortex_dtype::flatbuffers::{deserialize_and_project, resolve_field};
 use vortex_dtype::DType;
diff --git a/vortex-serde/src/layouts/read/context.rs b/vortex-serde/src/layouts/read/context.rs
index 223573c4d8..933943d2d0 100644
--- a/vortex-serde/src/layouts/read/context.rs
+++ b/vortex-serde/src/layouts/read/context.rs
@@ -1,8 +1,8 @@
 use std::fmt::{Debug, Display, Formatter};
 use std::sync::Arc;
 
-use ahash::HashMap;
 use bytes::Bytes;
+use vortex::aliases::hash_map::HashMap;
 use vortex::Context;
 use vortex_error::{vortex_err, VortexResult};
 use vortex_flatbuffers::footer as fb;
diff --git a/vortex-serde/src/layouts/read/filtering.rs b/vortex-serde/src/layouts/read/filtering.rs
index 9f9d7d39a4..721429e131 100644
--- a/vortex-serde/src/layouts/read/filtering.rs
+++ b/vortex-serde/src/layouts/read/filtering.rs
@@ -1,7 +1,7 @@
-use std::collections::HashSet;
 use std::fmt::Debug;
 use std::sync::Arc;
 
+use vortex::aliases::hash_set::HashSet;
 use vortex::array::ConstantArray;
 use vortex::compute::and;
 use vortex::stats::ArrayStatistics;