diff --git a/.github/workflows/submodule.yml b/.github/workflows/submodule.yml
index 8a93d8d31..f10c96576 100644
--- a/.github/workflows/submodule.yml
+++ b/.github/workflows/submodule.yml
@@ -16,7 +16,9 @@ jobs:
         uses: shimataro/ssh-key-action@v2
         with:
           key: ${{ secrets.SSH_KEY }}
-          known_hosts: ${{ secrets.KNOWN_HOSTS }}
+          known_hosts: unnecessary
+      - name: Retrieve Github Host Keys
+        run: ssh-keyscan github.com > ~/.ssh/known_hosts
       - name: Update submodule
         run: |
           git submodule update --init --recursive --checkout -f --remote -- "${{github.event.client_payload.module}}"