diff --git a/.config/hakari.toml b/.config/hakari.toml
index 1066bcd3b23..3ec44a85c3a 100644
--- a/.config/hakari.toml
+++ b/.config/hakari.toml
@@ -1,7 +1,7 @@
 # This file contains settings for `cargo hakari`.
 # See https://docs.rs/cargo-hakari/latest/cargo_hakari/config for a full list of options.
 
-hakari-package = "workspace-hack"
+hakari-package = "guppy-workspace-hack"
 
 # Setting workspace.resolver = "2" in the root Cargo.toml is HIGHLY recommended.
 # Hakari works much better with the new feature resolver.
diff --git a/Cargo.lock b/Cargo.lock
index d144642f071..ec8ccab8f39 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -265,13 +265,13 @@ dependencies = [
  "dialoguer",
  "guppy",
  "guppy-cmdlib",
+ "guppy-workspace-hack",
  "itertools",
  "pathdiff",
  "serde",
  "serde_json",
  "structopt",
  "toml_edit",
- "workspace-hack",
 ]
 
 [[package]]
@@ -286,13 +286,13 @@ dependencies = [
  "enable-ansi-support",
  "env_logger",
  "guppy",
+ "guppy-workspace-hack",
  "hakari",
  "log",
  "owo-colors 3.1.0",
  "structopt",
  "supports-color",
  "tempfile",
- "workspace-hack",
 ]
 
 [[package]]
@@ -653,13 +653,13 @@ dependencies = [
  "fixtures",
  "globset",
  "guppy",
+ "guppy-workspace-hack",
  "itertools",
  "once_cell",
  "petgraph",
  "rayon",
  "serde",
  "toml",
- "workspace-hack",
 ]
 
 [[package]]
@@ -782,12 +782,12 @@ dependencies = [
  "fixtures",
  "guppy",
  "guppy-cmdlib",
+ "guppy-workspace-hack",
  "hakari",
  "once_cell",
  "proptest",
  "proptest-ext",
  "structopt",
- "workspace-hack",
 ]
 
 [[package]]
@@ -796,10 +796,10 @@ version = "0.1.0"
 dependencies = [
  "camino",
  "guppy",
+ "guppy-workspace-hack",
  "once_cell",
  "pathdiff",
  "pretty_assertions",
- "workspace-hack",
 ]
 
 [[package]]
@@ -930,6 +930,7 @@ dependencies = [
  "fixedbitset",
  "fixtures",
  "guppy-summaries",
+ "guppy-workspace-hack",
  "indexmap",
  "itertools",
  "nested",
@@ -946,7 +947,6 @@ dependencies = [
  "smallvec",
  "target-spec",
  "toml",
- "workspace-hack",
 ]
 
 [[package]]
@@ -955,9 +955,9 @@ version = "0.1.0"
 dependencies = [
  "criterion",
  "guppy",
+ "guppy-workspace-hack",
  "proptest",
  "proptest-ext",
- "workspace-hack",
 ]
 
 [[package]]
@@ -966,9 +966,9 @@ version = "0.1.0"
 dependencies = [
  "anyhow",
  "guppy",
+ "guppy-workspace-hack",
  "proptest",
  "structopt",
- "workspace-hack",
 ]
 
 [[package]]
@@ -978,12 +978,37 @@ dependencies = [
  "camino",
  "cfg-if",
  "diffus",
+ "guppy-workspace-hack",
  "pretty_assertions",
  "semver",
  "serde",
  "serde_json",
  "toml",
- "workspace-hack",
+]
+
+[[package]]
+name = "guppy-workspace-hack"
+version = "0.1.0"
+dependencies = [
+ "bstr",
+ "clap",
+ "itoa",
+ "libc",
+ "log",
+ "memchr",
+ "num-traits",
+ "owo-colors 3.1.0",
+ "petgraph",
+ "proc-macro2 1.0.32",
+ "quote 1.0.10",
+ "regex",
+ "regex-syntax",
+ "semver",
+ "serde",
+ "serde_json",
+ "syn 1.0.82",
+ "toml",
+ "winapi",
 ]
 
 [[package]]
@@ -998,6 +1023,7 @@ dependencies = [
  "diffy",
  "fixtures",
  "guppy",
+ "guppy-workspace-hack",
  "include_dir",
  "indenter",
  "itertools",
@@ -1012,7 +1038,6 @@ dependencies = [
  "toml",
  "toml_edit",
  "twox-hash",
- "workspace-hack",
 ]
 
 [[package]]
@@ -1616,9 +1641,9 @@ dependencies = [
 name = "proptest-ext"
 version = "0.1.0"
 dependencies = [
+ "guppy-workspace-hack",
  "proptest",
  "twox-hash",
- "workspace-hack",
 ]
 
 [[package]]
@@ -2056,11 +2081,11 @@ name = "target-spec"
 version = "0.9.0"
 dependencies = [
  "cfg-expr",
+ "guppy-workspace-hack",
  "proptest",
  "serde",
  "target-lexicon",
  "toml",
- "workspace-hack",
 ]
 
 [[package]]
@@ -2394,31 +2419,6 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
 
-[[package]]
-name = "workspace-hack"
-version = "0.1.0"
-dependencies = [
- "bstr",
- "clap",
- "itoa",
- "libc",
- "log",
- "memchr",
- "num-traits",
- "owo-colors 3.1.0",
- "petgraph",
- "proc-macro2 1.0.32",
- "quote 1.0.10",
- "regex",
- "regex-syntax",
- "semver",
- "serde",
- "serde_json",
- "syn 1.0.82",
- "toml",
- "winapi",
-]
-
 [[package]]
 name = "zeroize"
 version = "1.4.3"
diff --git a/cargo-guppy/Cargo.toml b/cargo-guppy/Cargo.toml
index ab07a9dc04a..97b5e6f81a5 100644
--- a/cargo-guppy/Cargo.toml
+++ b/cargo-guppy/Cargo.toml
@@ -18,4 +18,4 @@ serde = { version = "1.0.130", features = ["derive"] }
 serde_json = "1.0.72"
 structopt = "0.3.25"
 toml_edit = "0.10.1"
-workspace-hack = { version = "0.1", path = "../workspace-hack" }
+guppy-workspace-hack = { version = "0.1", path = "../workspace-hack" }
diff --git a/fixtures/Cargo.toml b/fixtures/Cargo.toml
index a9989e6d54c..076f28bf020 100644
--- a/fixtures/Cargo.toml
+++ b/fixtures/Cargo.toml
@@ -11,4 +11,4 @@ guppy = { path = "../guppy" }
 once_cell = "1.8.0"
 pathdiff = "0.2.0"
 pretty_assertions = "1.0.0"
-workspace-hack = { version = "0.1", path = "../workspace-hack" }
+guppy-workspace-hack = { version = "0.1", path = "../workspace-hack" }
diff --git a/guppy-cmdlib/Cargo.toml b/guppy-cmdlib/Cargo.toml
index a86dd99163c..7cfde4b467c 100644
--- a/guppy-cmdlib/Cargo.toml
+++ b/guppy-cmdlib/Cargo.toml
@@ -12,7 +12,7 @@ anyhow = "1.0.44"
 guppy = { path = "../guppy" }
 structopt = "0.3.25"
 proptest = { version = "1.0.0", optional = true }
-workspace-hack = { version = "0.1", path = "../workspace-hack" }
+guppy-workspace-hack = { version = "0.1", path = "../workspace-hack" }
 
 [features]
 proptest1 = ["proptest", "guppy/proptest1"]
diff --git a/guppy-summaries/Cargo.toml b/guppy-summaries/Cargo.toml
index 86063c8fa64..374b9acb049 100644
--- a/guppy-summaries/Cargo.toml
+++ b/guppy-summaries/Cargo.toml
@@ -22,7 +22,7 @@ diffus = "0.10.0"
 toml = { version = "0.5.8", features = ["preserve_order"] }
 semver = { version = "1.0.4", features = ["serde"] }
 serde = { version = "1.0.130", features = ["derive"] }
-workspace-hack = { version = "0.1", path = "../workspace-hack" }
+guppy-workspace-hack = { version = "0.1", path = "../workspace-hack" }
 
 [dev-dependencies]
 pretty_assertions = "1.0.0"
diff --git a/guppy/Cargo.toml b/guppy/Cargo.toml
index b0ac0749ad2..b9b0c656d50 100644
--- a/guppy/Cargo.toml
+++ b/guppy/Cargo.toml
@@ -53,7 +53,7 @@ serde_json = "1.0.72"
 smallvec = "1.7.0"
 target-spec = { version = "0.9.0", path = "../target-spec" }
 toml = { version = "0.5.8", optional = true, features = ["preserve_order"] }
-workspace-hack = { version = "0.1", path = "../workspace-hack" }
+guppy-workspace-hack = { version = "0.1", path = "../workspace-hack" }
 
 [dev-dependencies]
 fixtures = { path = "../fixtures" }
diff --git a/internal-tools/benchmarks/Cargo.toml b/internal-tools/benchmarks/Cargo.toml
index cff4b6a06a5..e0227bb22e0 100644
--- a/internal-tools/benchmarks/Cargo.toml
+++ b/internal-tools/benchmarks/Cargo.toml
@@ -9,7 +9,7 @@ publish = false  # this is a private crate
 guppy = { path = "../../guppy", features = ["proptest1"] }
 proptest = "1.0.0"
 proptest-ext = { path = "../proptest-ext" }
-workspace-hack = { version = "0.1", path = "../../workspace-hack" }
+guppy-workspace-hack = { version = "0.1", path = "../../workspace-hack" }
 
 [dev-dependencies]
 criterion = "0.3.5"
diff --git a/internal-tools/fixture-manager/Cargo.toml b/internal-tools/fixture-manager/Cargo.toml
index fddad91da00..bbccb723518 100644
--- a/internal-tools/fixture-manager/Cargo.toml
+++ b/internal-tools/fixture-manager/Cargo.toml
@@ -18,4 +18,4 @@ once_cell = "1.8.0"
 proptest = "1.0.0"
 proptest-ext = { path = "../proptest-ext" }
 structopt = "0.3.25"
-workspace-hack = { version = "0.1", path = "../../workspace-hack" }
+guppy-workspace-hack = { version = "0.1", path = "../../workspace-hack" }
diff --git a/internal-tools/proptest-ext/Cargo.toml b/internal-tools/proptest-ext/Cargo.toml
index 0563ced9665..4d51311ce2a 100644
--- a/internal-tools/proptest-ext/Cargo.toml
+++ b/internal-tools/proptest-ext/Cargo.toml
@@ -10,4 +10,4 @@ publish = false  # this is a private crate
 [dependencies]
 proptest = "1.0.0"
 twox-hash = { version = "1.6.1", default-features = false }
-workspace-hack = { version = "0.1", path = "../../workspace-hack" }
+guppy-workspace-hack = { version = "0.1", path = "../../workspace-hack" }
diff --git a/target-spec/Cargo.toml b/target-spec/Cargo.toml
index 6662d5cd233..7261288d76e 100644
--- a/target-spec/Cargo.toml
+++ b/target-spec/Cargo.toml
@@ -22,7 +22,7 @@ cfg-expr = { version = "0.9.0", features = ["targets"] }
 proptest = { version = "1.0.0", optional = true }
 serde = { version = "1.0.130", optional = true, features = ["derive"] }
 target-lexicon = { version = "0.12.2", features = ["std"] }
-workspace-hack = { version = "0.1", path = "../workspace-hack" }
+guppy-workspace-hack = { version = "0.1", path = "../workspace-hack" }
 
 [dev-dependencies]
 toml = "0.5.8"
diff --git a/tools/cargo-hakari/Cargo.toml b/tools/cargo-hakari/Cargo.toml
index d6cf7b3f702..4b2595a1f1d 100644
--- a/tools/cargo-hakari/Cargo.toml
+++ b/tools/cargo-hakari/Cargo.toml
@@ -33,7 +33,7 @@ log = "0.4.14"
 owo-colors = { version = "3.1.0", features = ["supports-colors"] }
 supports-color = "1.3.0"
 structopt = "0.3.25"
-workspace-hack = { version = "0.1", path = "../../workspace-hack" }
+guppy-workspace-hack = { version = "0.1", path = "../../workspace-hack" }
 
 [dev-dependencies]
 tempfile = "3.2.0"
diff --git a/tools/determinator/Cargo.toml b/tools/determinator/Cargo.toml
index f24869e6750..cfcffa9a8a6 100644
--- a/tools/determinator/Cargo.toml
+++ b/tools/determinator/Cargo.toml
@@ -36,7 +36,7 @@ petgraph = { version = "0.6.0", default-features = false, features = ["graphmap"
 rayon = "1.5.1"
 serde = { version = "1.0.130", features = ["derive"] }
 toml = "0.5.8"
-workspace-hack = { version = "0.1", path = "../../workspace-hack" }
+guppy-workspace-hack = { version = "0.1", path = "../../workspace-hack" }
 
 [dev-dependencies]
 fixtures = { path = "../../fixtures" }
diff --git a/tools/hakari/Cargo.toml b/tools/hakari/Cargo.toml
index 08262e440b9..7fcfcb05807 100644
--- a/tools/hakari/Cargo.toml
+++ b/tools/hakari/Cargo.toml
@@ -43,7 +43,7 @@ target-spec = { version = "0.9.0", path = "../../target-spec" }
 toml = { version = "0.5.8", optional = true }
 toml_edit = "0.10.1"
 twox-hash = { version = "1.6.1", default-features = false }
-workspace-hack = { version = "0.1", path = "../../workspace-hack" }
+guppy-workspace-hack = { version = "0.1", path = "../../workspace-hack" }
 
 [dev-dependencies]
 fixtures = { path = "../../fixtures" }
diff --git a/tools/hakari/README.md b/tools/hakari/README.md
index c08becdc04b..b0d27cbd397 100644
--- a/tools/hakari/README.md
+++ b/tools/hakari/README.md
@@ -17,7 +17,8 @@ let package_graph = MetadataCommand::new()
     .expect("obtained cargo-guppy's PackageGraph");
 
 // The second argument to HakariBuilder::new specifies a Hakari (workspace-hack) package.
-let hakari_package = package_graph.workspace().member_by_name("workspace-hack").unwrap().id();
+// In this repository, the package is called "guppy-workspace-hack".
+let hakari_package = package_graph.workspace().member_by_name("guppy-workspace-hack").unwrap().id();
 let hakari_builder = HakariBuilder::new(&package_graph, Some(hakari_package))
     .expect("HakariBuilder was constructed");
 
diff --git a/tools/hakari/src/lib.rs b/tools/hakari/src/lib.rs
index 69bb30202d1..8866a56d3f9 100644
--- a/tools/hakari/src/lib.rs
+++ b/tools/hakari/src/lib.rs
@@ -18,7 +18,8 @@
 //!     .expect("obtained cargo-guppy's PackageGraph");
 //!
 //! // The second argument to HakariBuilder::new specifies a Hakari (workspace-hack) package.
-//! let hakari_package = package_graph.workspace().member_by_name("workspace-hack").unwrap().id();
+//! // In this repository, the package is called "guppy-workspace-hack".
+//! let hakari_package = package_graph.workspace().member_by_name("guppy-workspace-hack").unwrap().id();
 //! let hakari_builder = HakariBuilder::new(&package_graph, Some(hakari_package))
 //!     .expect("HakariBuilder was constructed");
 //!
diff --git a/workspace-hack/Cargo.toml b/workspace-hack/Cargo.toml
index 2d8e0b4fcff..623b6822d9a 100644
--- a/workspace-hack/Cargo.toml
+++ b/workspace-hack/Cargo.toml
@@ -3,7 +3,7 @@
 #     cargo hakari generate
 
 [package]
-name = "workspace-hack"
+name = "guppy-workspace-hack"
 version = "0.1.0"
 description = "workspace-hack package, managed by hakari"
 publish = true