diff --git a/.github/workflows/ruby.yml b/.github/workflows/ruby.yml
index 5332135..9f6fe50 100644
--- a/.github/workflows/ruby.yml
+++ b/.github/workflows/ruby.yml
@@ -58,7 +58,7 @@ jobs:
         id: yarn-cache
         run: echo "::set-output name=dir::$(yarn cache dir)"
       - name: Setup cache key and directory for node_modules cache
-        uses: actions/cache@v1
+        uses: actions/cache@v2.1.6
         with:
           path: ${{ steps.yarn-cache.outputs.dir }}
           key: ${{ runner.os }}-yarn-${{ hashFiles('**/yarn.lock') }}