diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9cbd7e8..a594c2c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -103,7 +103,7 @@ jobs:
     strategy:
       matrix:
         stack: ['2.9']
-        ghc: ['9.2.8']
+        ghc: ['9.4.7']
 
     steps:
       - uses: actions/checkout@v3
diff --git a/stack.yaml b/stack.yaml
index 9831a3e..496534e 100644
--- a/stack.yaml
+++ b/stack.yaml
@@ -1 +1 @@
-resolver: lts-20.12
+resolver: lts-21.14