diff --git a/.github/workflows/test-coding-standards.yml b/.github/workflows/test-coding-standards.yml
index ac193d2..b59a7bc 100644
--- a/.github/workflows/test-coding-standards.yml
+++ b/.github/workflows/test-coding-standards.yml
@@ -46,7 +46,7 @@ jobs:
         run: echo "COMPOSER_CACHE_FILES_DIR=$(composer config cache-files-dir)" >> $GITHUB_ENV
 
       - name: Cache dependencies
-        uses: actions/cache@v4
+        uses: actions/cache@v6
         with:
           path: ${{ env.COMPOSER_CACHE_FILES_DIR }}
           key: ${{ runner.os }}-${{ matrix.php-version }}-${{ hashFiles('**/composer.lock') }}
diff --git a/.github/workflows/test-phpstan.yml b/.github/workflows/test-phpstan.yml
index 571bf4f..852c2d0 100644
--- a/.github/workflows/test-phpstan.yml
+++ b/.github/workflows/test-phpstan.yml
@@ -54,7 +54,7 @@ jobs:
         run: echo "COMPOSER_CACHE_FILES_DIR=$(composer config cache-files-dir)" >> $GITHUB_ENV
 
       - name: Cache dependencies
-        uses: actions/cache@v4
+        uses: actions/cache@v6
         with:
           path: ${{ env.COMPOSER_CACHE_FILES_DIR }}
           key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.json') }}
@@ -64,7 +64,7 @@ jobs:
         run: mkdir -p build/phpstan
 
       - name: Cache PHPStan result cache directory
-        uses: actions/cache@v4
+        uses: actions/cache@v6
         with:
           path: build/phpstan
           key: ${{ runner.os }}-phpstan-${{ github.sha }}