diff --git a/.github/workflows/ci-linux.yaml b/.github/workflows/ci-linux.yaml
index 8cc1859e..2df00c98 100644
--- a/.github/workflows/ci-linux.yaml
+++ b/.github/workflows/ci-linux.yaml
@@ -84,7 +84,7 @@ jobs:
         with:
           path: |
             ~/.cabal
-          key: cabal
+          key: ${{hashFiles('cabal.project', '**/*.cabal')}}
 
       - uses: haskell/actions/setup@v1
         with: