diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index 63027e208a..aacb5b7346 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -37,7 +37,7 @@ jobs:
       uses: actions/cache@v3
       with:
         path: ./awkward-cpp/dist
-        key: ${{ runner.os }}-${{ env.PYTHON_VERSION }}-awkward-cpp-wasm-${{ hashFiles('awkward-cpp/**') }}
+        key: ${{ runner.os }}-${{ env.PYTHON_VERSION }}-awkward-cpp-wasm-${{ hashFiles('awkward-cpp/**') }}-CACHEBUST
 
     - name: Install dependencies
       if: steps.cache-awkward-cpp-wasm-wheel.outputs.cache-hit != 'true'