diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index dd6ae0e..ba0aa56 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -89,7 +89,7 @@ jobs:
 
             - uses: actions/cache@v4
               name: Cache ~/.stack (Windows)
-              if: matrix.os == "windows-latest"
+              if: matrix.os == 'windows-latest'
               with:
                   path: |
                     C:\Users\runneradmin\AppData\Local\Programs\stack
@@ -100,7 +100,7 @@ jobs:
 
             - uses: actions/cache@v4
               name: Cache ~/.stack (Windows)
-              if: matrix.os == "ubuntu-latest"
+              if: matrix.os == 'ubuntu-latest'
               with:
                   path: '~/.stack'
                   key: ${{ runner.os }}-stack-global-${{ hashFiles('stack.yaml') }}-${{ hashFiles('package.yaml') }}