diff --git a/.github/workflows/check-go.yml b/.github/workflows/check-go.yml
index d49e3a5..2b0ee10 100644
--- a/.github/workflows/check-go.yml
+++ b/.github/workflows/check-go.yml
@@ -24,7 +24,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v2.3.4
 
       - name: Install Taskfile
         uses: arduino/actions/setup-taskfile@master
@@ -40,7 +40,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v2.3.4
 
       - name: Install Taskfile
         uses: arduino/actions/setup-taskfile@master
@@ -56,7 +56,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v2.3.4
 
       - name: Install Taskfile
         uses: arduino/actions/setup-taskfile@master
diff --git a/.github/workflows/check-license.yml b/.github/workflows/check-license.yml
index b7abd12..134eca2 100644
--- a/.github/workflows/check-license.yml
+++ b/.github/workflows/check-license.yml
@@ -33,7 +33,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v2.3.4
 
       - name: Install Ruby
         uses: ruby/setup-ruby@v1
diff --git a/.github/workflows/check-prettier-formatting.yml b/.github/workflows/check-prettier-formatting.yml
index 748853c..87d226d 100644
--- a/.github/workflows/check-prettier-formatting.yml
+++ b/.github/workflows/check-prettier-formatting.yml
@@ -212,7 +212,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v2.3.4
 
       - name: Install Taskfile
         uses: arduino/actions/setup-taskfile@master
diff --git a/.github/workflows/check-python.yml b/.github/workflows/check-python.yml
index 849b872..fb09c5c 100644
--- a/.github/workflows/check-python.yml
+++ b/.github/workflows/check-python.yml
@@ -29,7 +29,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v2.3.4
 
       - name: Install Python
         uses: actions/setup-python@v2
@@ -53,7 +53,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v2.3.4
 
       - name: Install Python
         uses: actions/setup-python@v2
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index dc8ef21..105adc9 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -11,7 +11,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v2.3.4
 
       - name: Install Taskfile
         uses: arduino/actions/setup-taskfile@master
diff --git a/.github/workflows/spell-check.yml b/.github/workflows/spell-check.yml
index 218a538..c05213e 100644
--- a/.github/workflows/spell-check.yml
+++ b/.github/workflows/spell-check.yml
@@ -16,7 +16,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v2.3.4
 
       - name: Install Python
         uses: actions/setup-python@v2
diff --git a/.github/workflows/test-go.yml b/.github/workflows/test-go.yml
index 762755b..f9cda44 100644
--- a/.github/workflows/test-go.yml
+++ b/.github/workflows/test-go.yml
@@ -25,7 +25,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v2.3.4
 
       - name: Install Go
         uses: actions/setup-go@v2
diff --git a/.github/workflows/test-integration.yml b/.github/workflows/test-integration.yml
index 698fe4b..0441c4a 100644
--- a/.github/workflows/test-integration.yml
+++ b/.github/workflows/test-integration.yml
@@ -31,7 +31,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v2.3.4
 
       - name: Install Go
         uses: actions/setup-go@v2