diff --git a/.github/workflows/builder.yml b/.github/workflows/builder.yml
index 9ff32a2..7a7c5ea 100644
--- a/.github/workflows/builder.yml
+++ b/.github/workflows/builder.yml
@@ -20,7 +20,7 @@ jobs:
       changed: ${{ steps.changed_addons.outputs.changed }}
     steps:
       - name: Check out the repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v2.3.4
 
       - name: Get changed files
         id: changed_files
@@ -72,7 +72,7 @@ jobs:
 
     steps:
       - name: Check out repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v2.3.4
 
       - name: Get information
         id: info
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 691d62f..437e38f 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -16,7 +16,7 @@ jobs:
     name: hadolint
     steps:
       - name: Check out the repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v2.3.4
 
       - name: Run linter
         id: changed_files
@@ -34,7 +34,7 @@ jobs:
     name: JQ
     steps:
       - name: Check out the repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v2.3.4
 
       - name: Run linter
         run: |
@@ -46,7 +46,7 @@ jobs:
     name: ShellCheck
     steps:
       - name: Check out the repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v2.3.4
 
       - name: Run linter
         uses: ludeeus/action-shellcheck@1.1.0
\ No newline at end of file