diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 938670a..760c874 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -103,9 +103,9 @@ jobs:
       - uses: actions/cache@v2
         with:
           path: cargo-cache
-          key: ${{runner.os}}-cargo
+          key: ${{runner.os}}-cargo-${{ hashFiles('cargo-cache/bins/*') }}
           restore-keys: |
-            ${{runner.os}}-cargo
+            ${{runner.os}}-cargo-
 
       - uses: actions-rs/toolchain@v1
         with: