diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e6320431..cf428755 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -63,7 +63,7 @@ jobs:
         path: vendor
         key: ${{ runner.os }}-php-${{ hashFiles('**/composer.lock') }}
         restore-keys: |
-          ${{ runner.os }}-php-
+          ${{ runner.os }}-php-${{ matrix.php-version }}-
 
     - name: Install dependencies
       if: steps.composer-cache.outputs.cache-hit != 'true'