diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index f3123cc..76ae81e 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -13,7 +13,7 @@ jobs:
     name: Tests
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v2.3.4
       - uses: actions/setup-node@v2
         with:
           node-version: 12.x
@@ -41,7 +41,7 @@ jobs:
       #         Checkout        #
       ###########################
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v2.3.4
         with:
           lfs: true
 
@@ -82,7 +82,7 @@ jobs:
       ###########################
       #         Checkout        #
       ###########################
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v2.3.4
         with:
           lfs: true
 
@@ -129,7 +129,7 @@ jobs:
       ###########################
       #         Checkout        #
       ###########################
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v2.3.4
         with:
           lfs: true
 
@@ -176,7 +176,7 @@ jobs:
       ###########################
       #         Checkout        #
       ###########################
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v2.3.4
         with:
           lfs: true
 
@@ -223,7 +223,7 @@ jobs:
       ###########################
       #         Checkout        #
       ###########################
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v2.3.4
         with:
           lfs: true