diff --git a/.github/workflows/maven.yml b/.github/workflows/maven.yml
index 9b7f5a19..507b3e91 100644
--- a/.github/workflows/maven.yml
+++ b/.github/workflows/maven.yml
@@ -25,10 +25,10 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5  # v4
 
       - name: Set up JDK ${{ matrix.java }}
-        uses: actions/setup-java@v4
+        uses: actions/setup-java@c1e323688fd81a25caa38c78aa6df2d33d3e20d9  # v4
         with:
           distribution: temurin
           java-version: ${{ matrix.java }}
@@ -39,7 +39,7 @@ jobs:
 
       - name: Upload coverage report
         if: matrix.java == env.RELEASE_JAVA_VERSION
-        uses: codecov/codecov-action@v4
+        uses: codecov/codecov-action@b9fd7d16f6d7d1b5d2bec1a2887e65ceed900238  # v4
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
 
@@ -49,12 +49,12 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5  # v4
         with:
           fetch-depth: 0
 
       - name: Set up JDK
-        uses: actions/setup-java@v4
+        uses: actions/setup-java@c1e323688fd81a25caa38c78aa6df2d33d3e20d9  # v4
         with:
           distribution: temurin
           java-version: ${{ env.RELEASE_JAVA_VERSION }}