diff --git a/.github/workflows/dummy.yml b/.github/workflows/dummy.yml
index 5a162715..61fece1b 100644
--- a/.github/workflows/dummy.yml
+++ b/.github/workflows/dummy.yml
@@ -11,4 +11,4 @@ jobs:
     steps:
       -
         name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@ee0669bd1cc54295c223e0bb666b733df41de1c5 # v2