diff --git a/code-scanning/credo.yml b/code-scanning/credo.yml
index 7861c02..9a77881 100644
--- a/code-scanning/credo.yml
+++ b/code-scanning/credo.yml
@@ -42,7 +42,7 @@ jobs:
         elixir: [version]
     steps:
       - uses: actions/checkout@v3
-      - uses: erlef/setup-beam@v1
+      - uses: erlef/setup-beam@988e02bfe678367a02564f65ca2e37726dc0268f
         with:
           otp-version: ${{matrix.otp}}
           elixir-version: ${{matrix.elixir}}