diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 57493b1..2996a11 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -37,7 +37,7 @@ jobs:
         - os: ubuntu-latest
           stack-yaml: stack.yaml
           resolver: lts-19
-        - os: macos-latest
+        - os: macos-13
           stack-yaml: stack.yaml
           resolver: lts-19
         - os: windows-latest