diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 7c8e695..f2d367b 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -14,8 +14,8 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, macos-latest]
-        ghc: ["9.2.5"]
-        stack: ["2.9.3"]
+        ghc: ["9.6.4"]
+        stack: ["2.15.5"]
 
     steps:
       - name: Checkout repo
diff --git a/stack.yaml b/stack.yaml
index f575ba8..289af30 100644
--- a/stack.yaml
+++ b/stack.yaml
@@ -1,5 +1,5 @@
 ---
-resolver: lts-20.5
+resolver: lts-22.13
 
 packages:
   - .
diff --git a/stack.yaml.lock b/stack.yaml.lock
index f8dc00e..fcf6d2a 100644
--- a/stack.yaml.lock
+++ b/stack.yaml.lock
@@ -6,7 +6,7 @@
 packages: []
 snapshots:
 - completed:
-    sha256: a684cdbdf9304b325a503e0fe1d9648e9c18155ce4c7cfebbe8a7f93674e6295
-    size: 649106
-    url: https://raw.githubusercontent.com/commercialhaskell/stackage-snapshots/master/lts/20/5.yaml
-  original: lts-20.5
+    sha256: 6f0bea3ba5b07360f25bc886e8cff8d847767557a492a6f7f6dcb06e3cc79ee9
+    size: 712905
+    url: https://raw.githubusercontent.com/commercialhaskell/stackage-snapshots/master/lts/22/13.yaml
+  original: lts-22.13