diff --git a/Cargo.lock b/Cargo.lock
index a1940446..7cdf9f6e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -176,7 +176,7 @@ dependencies = [
  "float-cmp",
  "futures",
  "glob",
- "indexmap 2.2.2",
+ "indexmap 2.6.0",
  "json5",
  "lazy_static",
  "log",
@@ -560,6 +560,12 @@ dependencies = [
  "allocator-api2",
 ]
 
+[[package]]
+name = "hashbrown"
+version = "0.15.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1e087f84d4f86bf4b218b927129862374b72199ae7d8657835f1e89000eea4fb"
+
 [[package]]
 name = "hashlink"
 version = "0.8.4"
@@ -715,12 +721,12 @@ dependencies = [
 
 [[package]]
 name = "indexmap"
-version = "2.2.2"
+version = "2.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "824b2ae422412366ba479e8111fd301f7b5faece8149317bb81925979a53f520"
+checksum = "707907fe3c25f5424cce2cb7e1cbcafee6bdbe735ca90ef77c29e84591e5b9da"
 dependencies = [
  "equivalent",
- "hashbrown 0.14.2",
+ "hashbrown 0.15.0",
  "serde",
 ]
 
@@ -1279,7 +1285,7 @@ checksum = "b91f7eff05f748767f183df4320a63d6936e9c6107d97c9e6bdd9784f4289c94"
 dependencies = [
  "base64",
  "bitflags 2.4.1",
- "indexmap 2.2.2",
+ "indexmap 2.6.0",
  "serde",
  "serde_derive",
 ]
@@ -1407,7 +1413,7 @@ version = "1.0.107"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6b420ce6e3d8bd882e9b243c6eed35dbc9a6110c9769e74b584e0d68d1f20c65"
 dependencies = [
- "indexmap 2.2.2",
+ "indexmap 2.6.0",
  "itoa",
  "ryu",
  "serde",
@@ -1682,7 +1688,7 @@ version = "0.8.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "af06656561d28735e9c1cd63dfd57132c8155426aa6af24f36a00a351f88c48e"
 dependencies = [
- "indexmap 2.2.2",
+ "indexmap 2.6.0",
  "serde",
  "serde_spanned",
  "toml_datetime",
@@ -1704,7 +1710,7 @@ version = "0.22.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "18769cd1cec395d70860ceb4d932812a0b4d06b1a4bb336745a4d21b9496e992"
 dependencies = [
- "indexmap 2.2.2",
+ "indexmap 2.6.0",
  "serde",
  "serde_spanned",
  "toml_datetime",
diff --git a/Cargo.toml b/Cargo.toml
index b47d3eb5..d1846c04 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -36,7 +36,7 @@ yaml-rust2 = { version = "0.8", optional = true }
 rust-ini = { version = "0.20", optional = true }
 ron = { version = "0.8", optional = true }
 json5_rs = { version = "0.4", optional = true, package = "json5" }
-indexmap = { version = "2.2", features = ["serde"], optional = true }
+indexmap = { version = "2.6", features = ["serde"], optional = true }
 convert_case = { version = "0.6", optional = true }
 pathdiff = "0.2"