diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 618d1ae..f8c5237 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -30,7 +30,7 @@ jobs:
     steps:
       -
         name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v2.3.4
         with:
           fetch-depth: 0
       -
@@ -64,7 +64,7 @@ jobs:
     steps:
       -
         name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v2.3.4
         with:
           fetch-depth: 0
       -
@@ -96,7 +96,7 @@ jobs:
     steps:
       -
         name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v2.3.4
         with:
           fetch-depth: 0
       -
@@ -135,7 +135,7 @@ jobs:
     steps:
       -
         name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v2.3.4
         with:
           fetch-depth: 0
       -
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 56b72c4..3a741a9 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -16,7 +16,7 @@ jobs:
     steps:
       -
         name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v2.3.4
         with:
           fetch-depth: 0
       -