diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 33afaa72..3fe5d278 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -54,7 +54,7 @@ jobs:
       - name: Prepare environment
         env:
           GPG_KEY_CONTENTS: ${{ secrets.GPG_KEY_CONTENTS }}
-          SIGNING_SECRET_KEY_RING_FILE: ${{ vars.SIGNING_SECRET_KEY_RING_FILE }}
+          SIGNING_SECRET_KEY_RING_FILE: ${{ secrets.SIGNING_SECRET_KEY_RING_FILE }}
         run: |
           git fetch --unshallow
           sudo bash -c "echo '$GPG_KEY_CONTENTS' | base64 -d > '$SIGNING_SECRET_KEY_RING_FILE'"
@@ -95,7 +95,7 @@ jobs:
       - name: Prepare environment
         env:
           GPG_KEY_CONTENTS: ${{ secrets.GPG_KEY_CONTENTS }}
-          SIGNING_SECRET_KEY_RING_FILE: ${{ vars.SIGNING_SECRET_KEY_RING_FILE }}
+          SIGNING_SECRET_KEY_RING_FILE: ${{ secrets.SIGNING_SECRET_KEY_RING_FILE }}
         run: |
           git fetch --unshallow
           sudo bash -c "echo '$GPG_KEY_CONTENTS' | base64 -d > '$SIGNING_SECRET_KEY_RING_FILE'"