diff --git a/Cargo.lock b/Cargo.lock
index 72861b5..132ab65 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -701,9 +701,9 @@ dependencies = [
 
 [[package]]
 name = "indexmap"
-version = "2.6.0"
+version = "2.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "707907fe3c25f5424cce2cb7e1cbcafee6bdbe735ca90ef77c29e84591e5b9da"
+checksum = "3954d50fe15b02142bf25d3b8bdadb634ec3948f103d04ffe3031bc8fe9d7058"
 dependencies = [
  "equivalent",
  "hashbrown 0.15.0",
@@ -1111,7 +1111,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b4c5cc86750666a3ed20bdaf5ca2a0344f9c67674cae0515bec2da16fbaa47db"
 dependencies = [
  "fixedbitset",
- "indexmap 2.6.0",
+ "indexmap 2.8.0",
 ]
 
 [[package]]
@@ -1348,7 +1348,7 @@ dependencies = [
  "clap",
  "csv",
  "exitcode",
- "indexmap 2.6.0",
+ "indexmap 2.8.0",
  "indicatif",
  "log",
  "ndarray",
diff --git a/Cargo.toml b/Cargo.toml
index a5f7341..d0d10e9 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -22,7 +22,7 @@ bitcode = "=0.6.3"
 clap = { version = "4.5.1", features = ["derive"] }
 csv = "1.3.0"
 exitcode = "1.1.2"
-indexmap = "2.2.3"
+indexmap = "2.8.0"
 indicatif = "0.17.9"
 log = "0.4.20"
 ndarray = "0.15.6"