diff --git a/.github/workflows/buildbot.yml b/.github/workflows/buildbot.yml
index e517365e..ac40b844 100644
--- a/.github/workflows/buildbot.yml
+++ b/.github/workflows/buildbot.yml
@@ -19,7 +19,7 @@ jobs:
         with:
           java-version: 11
       - name: Cache Gradle packages
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         with:
           path: ~/.gradle/caches
           key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle.kts') }}