diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index a358264..b1c732b 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -12,6 +12,6 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@ee0669bd1cc54295c223e0bb666b733df41de1c5 # v2
       - name: Shell Linter
-        uses: azohra/shell-linter@latest
+        uses: azohra/shell-linter@6bbeaa868df09c34ddc008e6030cfe89c03394a1 # latest