diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index df29a23..153e396 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -61,8 +61,8 @@ jobs:
             ~/.cargo/registry/cache/
             ~/.cargo/git/db/
             target/
-          key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
-          restore-keys: ${{ runner.os }}-cargo-
+          key: ${{ runner.os }}-cargo-llvm-${{ hashFiles('**/Cargo.lock') }}
+          restore-keys: ${{ runner.os }}-cargo-llvm
       - uses: taiki-e/install-action@cargo-llvm-cov
       - uses: taiki-e/install-action@nextest
       - name: Collect coverage data