diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 1d4ac90..b0caa58 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -19,7 +19,7 @@ jobs:
       id:   cache-toolchain
       uses: actions/cache@v2
       env:
-        cache-name: cache-toolchain
+        cache-name: cache-toolchain-10-2020-q4
       with:
           path: ${{ runner.temp }}/arm-none-eabi
           key:  ${{ runner.os }}-build-${{ env.cache-name }}