diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 64b6d55..aef87bf 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -48,7 +48,7 @@ jobs:
         run: echo "::set-output name=dir::$(composer config cache-files-dir)"
 
       - name: Cache Composer dependencies
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: ${{ steps.composer-cache.outputs.dir }}
           # Use composer.json for key, if composer.lock is not committed.
diff --git a/.github/workflows/run-tests.yml b/.github/workflows/run-tests.yml
index bfbca5d..c933c09 100644
--- a/.github/workflows/run-tests.yml
+++ b/.github/workflows/run-tests.yml
@@ -38,7 +38,7 @@ jobs:
         run: echo "::set-output name=dir::$(composer config cache-files-dir)"
 
       - name: Cache Composer dependencies
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: ${{ steps.composer-cache.outputs.dir }}
           # Use composer.json for key, if composer.lock is not committed.