diff --git a/.github/workflows/build-kdoc.yml b/.github/workflows/build-kdoc.yml
index ba99af7..548546f 100644
--- a/.github/workflows/build-kdoc.yml
+++ b/.github/workflows/build-kdoc.yml
@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v7
-      - uses: actions/setup-java@v5
+      - uses: actions/setup-java@v5.6.0
         with:
           distribution: temurin
           java-version: 21   # keep in sync with gradle/gradle-daemon-jvm.properties
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index c13a7e8..9f746d7 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -12,6 +12,6 @@ jobs:
       uses: actions/checkout@v7
 
     - name: Analyze code with CodeQL
-      uses: github/codeql-action/analyze@v4
+      uses: github/codeql-action/analyze@v4.37.3
       with:
         category: "security"
\ No newline at end of file
diff --git a/.github/workflows/test-dev.yml b/.github/workflows/test-dev.yml
index 26c6d62..cbe174c 100644
--- a/.github/workflows/test-dev.yml
+++ b/.github/workflows/test-dev.yml
@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v7
-      - uses: actions/setup-java@v5
+      - uses: actions/setup-java@v5.6.0
         with:
           distribution: temurin
           java-version: 21   # keep in sync with gradle/gradle-daemon-jvm.properties
@@ -25,7 +25,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v7
-      - uses: actions/setup-java@v5
+      - uses: actions/setup-java@v5.6.0
         with:
           distribution: temurin
           java-version: 21   # keep in sync with gradle/gradle-daemon-jvm.properties