diff --git a/cabal.project b/cabal.project
index 8d8bd080af..807262558c 100644
--- a/cabal.project
+++ b/cabal.project
@@ -7,7 +7,7 @@ packages:
          ./hls-test-utils
 
 
-index-state: 2025-08-08T12:31:54Z
+index-state: 2025-12-14T18:03:17Z
 
 tests: True
 test-show-details: direct
diff --git a/ghcide/ghcide.cabal b/ghcide/ghcide.cabal
index f7825f5c8d..a2c236b649 100644
--- a/ghcide/ghcide.cabal
+++ b/ghcide/ghcide.cabal
@@ -106,7 +106,7 @@ library
     , transformers
     , unliftio                     >=0.2.6
     , unliftio-core
-    , unordered-containers         >=0.2.10.0
+    , unordered-containers         >=0.2.21
     , vector
 
   if os(windows)
diff --git a/stack-lts22.yaml b/stack-lts22.yaml
index 429125333a..ba60b5e6ab 100644
--- a/stack-lts22.yaml
+++ b/stack-lts22.yaml
@@ -28,6 +28,7 @@ extra-deps:
   - lsp-types-2.3.0.0
   - monad-dijkstra-0.1.1.4 # 5
   - retrie-1.2.3
+  - unordered-containers-0.2.21
 
   # stan and friends
   - stan-0.2.1.0
diff --git a/stack.yaml b/stack.yaml
index 43cb239b34..91b6dd90ab 100644
--- a/stack.yaml
+++ b/stack.yaml
@@ -27,6 +27,7 @@ extra-deps:
   - hw-fingertree-0.1.2.1
   - monad-dijkstra-0.1.1.5
   - retrie-1.2.3
+  - unordered-containers-0.2.21
 
   # stan dependencies not found in the stackage snapshot
   - stan-0.2.1.0