diff --git a/Cargo.lock b/Cargo.lock
index 0b47436b..e074975e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2088,9 +2088,9 @@ checksum = "206ca75c9c03ba3d4ace2460e57b189f39f43de612c2f85836e65c929701bb2d"
 
 [[package]]
 name = "indexmap"
-version = "2.4.0"
+version = "2.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "93ead53efc7ea8ed3cfb0c79fc8023fbb782a5432b52830b6518941cebe6505c"
+checksum = "68b900aa2f7301e21c36462b170ee99994de34dff39a4a6a528e80e7376d07e5"
 dependencies = [
  "equivalent",
  "hashbrown 0.14.5",
diff --git a/Cargo.toml b/Cargo.toml
index 62a4dd69..0cf9ecc8 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -47,7 +47,7 @@ env_logger = "0.11"
 flate2 = "1.0"
 futures = "0.3"
 hgvs = "0.17.2"
-indexmap = { version = "2.4", features = ["serde"] }
+indexmap = { version = "2.5", features = ["serde"] }
 indicatif = { version = "0.17", features = ["rayon"] }
 itertools = "0.13"
 jsonl = "4.0"