diff --git a/Cargo.lock b/Cargo.lock
index 1b94ff1a..3c023816 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -167,9 +167,9 @@ dependencies = [
 
 [[package]]
 name = "indexmap"
-version = "2.3.0"
+version = "2.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "de3fc2e30ba82dd1b3911c8de1ffc143c74a914a14e99514d7637e3099df5ea0"
+checksum = "93ead53efc7ea8ed3cfb0c79fc8023fbb782a5432b52830b6518941cebe6505c"
 dependencies = [
  "equivalent",
  "hashbrown",
diff --git a/Cargo.toml b/Cargo.toml
index 3e4e356f..3ae5e39a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -19,7 +19,7 @@ html5ever = "0.27"
 selectors = "0.25.0"
 tendril = "0.4.3"
 ahash = "0.8"
-indexmap = { version = "2.3.0", optional = true }
+indexmap = { version = "2.4.0", optional = true }
 once_cell = "1.19"
 
 [dependencies.getopts]