diff --git a/Cargo.lock b/Cargo.lock
index 3c13d19bb..00f56af98 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -661,7 +661,7 @@ dependencies = [
  "flume",
  "fs2",
  "futures",
- "indexmap 2.2.6",
+ "indexmap 2.6.0",
  "itertools 0.13.0",
  "madsim",
  "madsim-tokio",
@@ -1181,7 +1181,7 @@ dependencies = [
  "futures-core",
  "futures-sink",
  "http",
- "indexmap 2.2.6",
+ "indexmap 2.6.0",
  "slab",
  "tokio",
  "tokio-util",
@@ -1200,6 +1200,12 @@ version = "0.14.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e5274423e17b7c9fc20b6e7e208532f9b19825d82dfd615708b70edd83df41f1"
 
+[[package]]
+name = "hashbrown"
+version = "0.15.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1e087f84d4f86bf4b218b927129862374b72199ae7d8657835f1e89000eea4fb"
+
 [[package]]
 name = "heck"
 version = "0.5.0"
@@ -1378,12 +1384,12 @@ dependencies = [
 
 [[package]]
 name = "indexmap"
-version = "2.2.6"
+version = "2.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "168fb715dda47215e360912c096649d23d58bf392ac62f73919e831745e40f26"
+checksum = "707907fe3c25f5424cce2cb7e1cbcafee6bdbe735ca90ef77c29e84591e5b9da"
 dependencies = [
  "equivalent",
- "hashbrown 0.14.5",
+ "hashbrown 0.15.0",
 ]
 
 [[package]]
@@ -1502,7 +1508,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0c2a198fb6b0eada2a8df47933734e6d35d350665a33a3593d7164fa52c75c19"
 dependencies = [
  "cfg-if",
- "windows-targets 0.48.5",
+ "windows-targets 0.52.6",
 ]
 
 [[package]]
@@ -2068,7 +2074,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b4c5cc86750666a3ed20bdaf5ca2a0344f9c67674cae0515bec2da16fbaa47db"
 dependencies = [
  "fixedbitset",
- "indexmap 2.2.6",
+ "indexmap 2.6.0",
 ]
 
 [[package]]
@@ -2172,7 +2178,7 @@ checksum = "509354d8a769e8d0b567d6821b84495c60213162761a732d68ce87c964bd347f"
 dependencies = [
  "autocfg",
  "equivalent",
- "indexmap 2.2.6",
+ "indexmap 2.6.0",
 ]
 
 [[package]]
@@ -3017,7 +3023,7 @@ version = "0.22.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f21c7aaf97f1bd9ca9d4f9e73b0a6c74bd5afef56f2bc931943a6e1c37e04e38"
 dependencies = [
- "indexmap 2.2.6",
+ "indexmap 2.6.0",
  "serde",
  "serde_spanned",
  "toml_datetime",
diff --git a/crates/curp/Cargo.toml b/crates/curp/Cargo.toml
index 0294aa389..f2d588521 100644
--- a/crates/curp/Cargo.toml
+++ b/crates/curp/Cargo.toml
@@ -26,7 +26,7 @@ event-listener = "5.3.1"
 flume = "0.11.0"
 fs2 = "0.4.3"
 futures = "0.3.21"
-indexmap = "2.2.6"
+indexmap = "2.6.0"
 itertools = "0.13"
 madsim = { version = "0.2.27", features = ["rpc", "macros"] }
 opentelemetry = { version = "0.24.0", features = ["metrics"] }