diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ee7e135..ae50fc2 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -32,7 +32,7 @@ jobs:
           cache-dependency-path: 'functions/package-lock.json'
 
       - name: Setup Java (for Firestore emulator)
-        uses: actions/setup-java@v4
+        uses: actions/setup-java@v5
         with:
           distribution: temurin
           java-version: '21'