diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 3550a46..63c1008 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -27,7 +27,7 @@ jobs:
           fail-fast: true
 
       - name: Install PHP Dependencies
-        uses: ramsey/composer-install@a35c6ebd3d08125aaf8852dff361e686a1a67947 # 3.2.0
+        uses: ramsey/composer-install@65e4f84970763564f46a70b8a54b90d033b3bdda # 4.0.0
 
       - name: Generate stubs
         run: composer generate