diff --git a/.github/workflows/benchmark.yaml b/.github/workflows/benchmark.yaml
index 35059f7c..136356de 100644
--- a/.github/workflows/benchmark.yaml
+++ b/.github/workflows/benchmark.yaml
@@ -26,7 +26,7 @@ jobs:
         uses: actions/cache@v3
         with:
           path: ./cache
-          key: $${runner.os }}-gen1-benchmark
+          key: ${{ runner.os }}-gen1-benchmark
       # Run `github-action-benchmark` action
       - name: Store benchmark result
         uses: benchmark-action/github-action-benchmark@v1.14.0
diff --git a/.github/workflows/cluster.yaml b/.github/workflows/cluster.yaml
index a28c667a..ee92a4f0 100644
--- a/.github/workflows/cluster.yaml
+++ b/.github/workflows/cluster.yaml
@@ -167,7 +167,7 @@ jobs:
         uses: actions/cache@v3
         with:
           path: ./cache
-          key: $${runner.os }}-gen1-benchmark-stateless-cluster
+          key: ${{ runner.os }}-gen1-benchmark-stateless-cluster
       # Run `github-action-benchmark` action
       - name: Store benchmark result
         uses: benchmark-action/github-action-benchmark@v1.14.0