diff --git a/.github/workflows/publish.yaml b/.github/workflows/publish.yaml
index 71061e3..e78da04 100644
--- a/.github/workflows/publish.yaml
+++ b/.github/workflows/publish.yaml
@@ -7,10 +7,10 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
 
       - name: Set up Apache Maven Central
-        uses: actions/setup-java@v4
+        uses: actions/setup-java@c1e323688fd81a25caa38c78aa6df2d33d3e20d9 # v4
         with: # running setup-java again overwrites the settings.xml
           distribution: "temurin"
           java-version: "11"
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 59cbfe7..b002078 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -17,10 +17,10 @@ jobs:
     name: Java ${{ matrix.java-versions }} Test on ${{ matrix.operating-system }}
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
 
     - name: Set up JDK ${{ matrix.java-versions }}
-      uses: actions/setup-java@v4
+      uses: actions/setup-java@c1e323688fd81a25caa38c78aa6df2d33d3e20d9 # v4
       with:
         distribution: 'temurin'
         java-version: ${{ matrix.java-versions }}