diff --git a/Cargo.lock b/Cargo.lock
index 0bcae64d6b9..014c3eb5098 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -143,7 +143,7 @@ dependencies = [
  "chalk-parse",
  "chalk-recursive",
  "chalk-solve",
- "indexmap 1.8.0",
+ "indexmap 2.0.0",
  "salsa",
  "string_cache",
  "tracing",
@@ -188,7 +188,7 @@ dependencies = [
  "chalk-integration",
  "chalk-ir",
  "ena",
- "indexmap 1.8.0",
+ "indexmap 2.0.0",
  "itertools",
  "petgraph 0.6.4",
  "rustc-hash",
diff --git a/chalk-integration/Cargo.toml b/chalk-integration/Cargo.toml
index 5f4f5a9b280..27548c03100 100644
--- a/chalk-integration/Cargo.toml
+++ b/chalk-integration/Cargo.toml
@@ -20,4 +20,4 @@ chalk-solve = { version = "0.94.0-dev.0", path = "../chalk-solve" }
 chalk-recursive = { version = "0.94.0-dev.0", path = "../chalk-recursive" }
 chalk-engine = { version = "0.94.0-dev.0", path = "../chalk-engine" }
 chalk-parse = { version = "0.94.0-dev.0", path = "../chalk-parse" }
-indexmap = "1.8.0"
+indexmap = "2"
diff --git a/chalk-solve/Cargo.toml b/chalk-solve/Cargo.toml
index 4f236403425..4584cbe51a4 100644
--- a/chalk-solve/Cargo.toml
+++ b/chalk-solve/Cargo.toml
@@ -20,7 +20,7 @@ rustc-hash = { version = "1.1.0" }
 
 chalk-derive = { version = "0.94.0-dev.0", path = "../chalk-derive" }
 chalk-ir = { version = "0.94.0-dev.0", path = "../chalk-ir" }
-indexmap = "1.8.0"
+indexmap = "2"
 
 [dev-dependencies]
 chalk-integration = { path = "../chalk-integration" }