diff --git a/Cargo.lock b/Cargo.lock
index 234a35c4..1a2f725f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -355,9 +355,9 @@ checksum = "fed44880c466736ef9a5c5b5facefb5ed0785676d0c02d612db14e54f0d84286"
 
 [[package]]
 name = "indexmap"
-version = "2.0.2"
+version = "2.2.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8adf3ddd720272c6ea8bf59463c04e0f93d0bbf7c5439b691bca2987e0270897"
+checksum = "168fb715dda47215e360912c096649d23d58bf392ac62f73919e831745e40f26"
 dependencies = [
  "equivalent",
  "hashbrown 0.14.1",
diff --git a/crates/hcl-rs/Cargo.toml b/crates/hcl-rs/Cargo.toml
index 2edc22ec..af018680 100644
--- a/crates/hcl-rs/Cargo.toml
+++ b/crates/hcl-rs/Cargo.toml
@@ -34,7 +34,7 @@ default = []
 perf = ["hcl-edit/perf", "hcl-primitives/perf"]
 
 [dependencies]
-indexmap = { version = "2.0.2", features = ["serde"] }
+indexmap = { version = "2.2.6", features = ["serde"] }
 itoa = "1.0.9"
 hcl-edit = { version = "0.7.5", path = "../hcl-edit" }
 hcl-primitives = { version = "0.1.2", path = "../hcl-primitives", features = ["serde"] }