diff --git a/.github/workflows/run_api_tests.yaml b/.github/workflows/run_api_tests.yaml
index c0c05dff0..e8ab99f57 100644
--- a/.github/workflows/run_api_tests.yaml
+++ b/.github/workflows/run_api_tests.yaml
@@ -40,7 +40,7 @@ jobs:
       uses: actions/cache@v2
       with:
         path: source/_build/default/lib/quicer/
-        key: ${{ matrix.os }}-${{ matrix.otp }}-$${{ matrix.arch }}-${{ steps.deps-refs.outputs.DEP_QUICER_REF }}
+        key: ${{ matrix.os }}-${{ matrix.otp }}-${{ matrix.arch }}-${{ steps.deps-refs.outputs.DEP_QUICER_REF }}
 
     - name: build EMQ X CE and EE tgz package
       if: endsWith(github.repository, 'emqx')
diff --git a/.github/workflows/run_emqx_app_tests.yaml b/.github/workflows/run_emqx_app_tests.yaml
index 731bd7e0a..c204d718b 100644
--- a/.github/workflows/run_emqx_app_tests.yaml
+++ b/.github/workflows/run_emqx_app_tests.yaml
@@ -38,7 +38,7 @@ jobs:
       uses: actions/cache@v2
       with:
         path: _build/default/lib/quicer/
-        key: ${{ matrix.os }}-${{ matrix.otp }}-$${{ matrix.arch }}-${{ steps.deps-refs.outputs.DEP_QUICER_REF }}
+        key: ${{ matrix.os }}-${{ matrix.otp }}-${{ matrix.arch }}-${{ steps.deps-refs.outputs.DEP_QUICER_REF }}
     - name: run
       run: |
         make ensure-rebar3
diff --git a/.github/workflows/run_test_cases.yaml b/.github/workflows/run_test_cases.yaml
index 57687fa91..e50993ded 100644
--- a/.github/workflows/run_test_cases.yaml
+++ b/.github/workflows/run_test_cases.yaml
@@ -29,20 +29,20 @@ jobs:
         - uses: actions/checkout@v2
 
         - name: Get deps git refs for cache
-           id: deps-refs
-           run: |
-             scripts/get-dep-refs.sh
-             make clean-all
-         - name: load rocksdb cache
-           uses: actions/cache@v2
-           with:
-             path: source/_build/default/lib/rocksdb/
-             key: ${{ matrix.os }}-${{ matrix.otp }}-${{ matrix.arch }}-${{ steps.deps-refs.outputs.DEP_ROCKSDB_REF }}
-         - name: load quicer cache
-           uses: actions/cache@v2
-           with:
-             path: source/_build/default/lib/quicer/
-             key: ${{ matrix.os }}-${{ matrix.otp }}-$${{ matrix.arch }}-${{ steps.deps-refs.outputs.DEP_QUICER_REF }}
+          id: deps-refs
+          run: |
+            scripts/get-dep-refs.sh
+            make clean-all
+        - name: load rocksdb cache
+          uses: actions/cache@v2
+          with:
+            path: source/_build/default/lib/rocksdb/
+            key: ${{ matrix.os }}-${{ matrix.otp }}-${{ matrix.arch }}-${{ steps.deps-refs.outputs.DEP_ROCKSDB_REF }}
+        - name: load quicer cache
+          uses: actions/cache@v2
+          with:
+            path: source/_build/default/lib/quicer/
+            key: ${{ matrix.os }}-${{ matrix.otp }}-${{ matrix.arch }}-${{ steps.deps-refs.outputs.DEP_QUICER_REF }}
 
         - name: proper
           run: make proper