diff --git a/.github/workflows/phpcs.yml b/.github/workflows/phpcs.yml
index b7f84ef..493349e 100644
--- a/.github/workflows/phpcs.yml
+++ b/.github/workflows/phpcs.yml
@@ -29,6 +29,6 @@ jobs:
           coverage: none
           tools: composer, cs2pr
       - name: Install Composer dependencies for PHP
-        uses: ramsey/composer-install@v3
+        uses: ramsey/composer-install@v4
       - name: Detect coding standard violations
         run: ./vendor/bin/phpcs
diff --git a/.github/workflows/phpunit.yml b/.github/workflows/phpunit.yml
index 833b5a8..8f987de 100644
--- a/.github/workflows/phpunit.yml
+++ b/.github/workflows/phpunit.yml
@@ -60,7 +60,7 @@ jobs:
           coverage: none
 
       - name: Install Composer dependencies
-        uses: ramsey/composer-install@v3
+        uses: ramsey/composer-install@v4
 
       - name: Setup Test Environment
         run: bash bin/install-wp-tests.sh wordpress_test root root 127.0.0.1 ${{ matrix.wp-version }}