diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index b030b57b..97796567 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -15,7 +15,7 @@ jobs:
     name: Build on ${{matrix.os}}
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/setup-java@v4
+      - uses: actions/setup-java@b6effb05e454b25005698d916606bdc6ffcbf961 # v5
         with:
           distribution: 'zulu'
           java-version: '21'
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 73e562ca..ef2eb99c 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -11,7 +11,7 @@ jobs:
     runs-on: macos-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/setup-java@v4
+      - uses: actions/setup-java@b6effb05e454b25005698d916606bdc6ffcbf961 # v5
         with:
           distribution: 'zulu'
           java-version: '21'