diff --git a/.github/workflows/pull_request.yml b/.github/workflows/pull_request.yml
index 281841f0..ef9bec1f 100644
--- a/.github/workflows/pull_request.yml
+++ b/.github/workflows/pull_request.yml
@@ -20,7 +20,7 @@ jobs:
       with:
         python-version: '3.7'
 
-    - uses: actions/cache@v3
+    - uses: actions/cache@v4
       with:
         path: ~/.cache/pip
         key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt') }}