diff --git a/.github/workflows/dependency-update.yml b/.github/workflows/dependency-update.yml
index 184ba02f..8e2765d4 100644
--- a/.github/workflows/dependency-update.yml
+++ b/.github/workflows/dependency-update.yml
@@ -6,7 +6,7 @@ jobs:
   dependency-updates:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v2.3.4
       - uses: actions/cache@v2.1.5
         with:
           path: ~/.gradle/caches
diff --git a/.github/workflows/gradle.yml b/.github/workflows/gradle.yml
index 7f5d3816..18915d3d 100644
--- a/.github/workflows/gradle.yml
+++ b/.github/workflows/gradle.yml
@@ -10,7 +10,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v2.3.4
     - uses: actions/cache@v2.1.5
       with:
         path: ~/.gradle/caches
diff --git a/.github/workflows/release-notes.yml b/.github/workflows/release-notes.yml
index c6043907..1c689ef2 100644
--- a/.github/workflows/release-notes.yml
+++ b/.github/workflows/release-notes.yml
@@ -10,7 +10,7 @@ jobs:
   release_notes:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v2.3.4
       - name: Export Gradle Properties
         uses: micronaut-projects/github-actions/export-gradle-properties@master
       - uses: micronaut-projects/github-actions/release-notes@master
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 2235cf0d..4cd94f5c 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v2.3.4
         with:
           token: ${{ secrets.GH_TOKEN }}
       - name: Gradle wrapper validation
diff --git a/.github/workflows/update-gradle-wrapper.yml b/.github/workflows/update-gradle-wrapper.yml
index dd45fc49..5c5e797b 100644
--- a/.github/workflows/update-gradle-wrapper.yml
+++ b/.github/workflows/update-gradle-wrapper.yml
@@ -7,7 +7,7 @@ jobs:
     if: github.repository == 'micronaut-projects/micronaut-project-template'
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v2.3.4
         with:
           token: ${{ secrets.GH_TOKEN }}
       - name: "Update Gradle Wrapper"