diff --git a/.github/workflows/setup-rust-cache/action.yml b/.github/workflows/setup-rust-cache/action.yml
index ff123aaa..a01726d5 100644
--- a/.github/workflows/setup-rust-cache/action.yml
+++ b/.github/workflows/setup-rust-cache/action.yml
@@ -19,3 +19,4 @@ runs:
         save-if: ${{ github.ref == 'refs/heads/main' }}
         # Further, save the cache per key - e.g. language grouping.
         key: ${{ inputs.key }}
+        prefix-key: v1-rust