diff --git a/.github/workflows/release-dev.yml b/.github/workflows/release-dev.yml
index 978da05..c1f4cfe 100644
--- a/.github/workflows/release-dev.yml
+++ b/.github/workflows/release-dev.yml
@@ -1,5 +1,4 @@
-name: Node.js CI
-
+name: release dev
 on:
   push:
     tags: '![0-9]+.[0-9]+.[0-9]+'
@@ -14,37 +13,38 @@ jobs:
 
     steps:
     - uses: actions/checkout@v2
+
+    - name: Cache node modules
+      uses: actions/cache@v2
+      env:
+        cache-name: cache-node-modules
+      with:
+        # npm cache files are stored in `~/.npm` on Linux/macOS
+        path: ~/.npm
+        key: ${{ runner.os }}-build-${{ env.cache-name }}-${{ hashFiles('**/package.json') }}
+        restore-keys: |
+          ${{ runner.os }}-build-${{ env.cache-name }}-
+          ${{ runner.os }}-build-
+          ${{ runner.os }}-
+          
     - name: Use Node.js ${{ matrix.node-version }}
       uses: actions/setup-node@v1
       with:
         node-version: ${{ matrix.node-version }}
-    - run: npm install
-    - run: npm install -g --save-dev shadow-cljs
-    - run: shadow-cljs compile test
+      run: npm install
+      run: npm install -g --save-dev shadow-cljs
+      run: shadow-cljs compile test
 
-  release-build-dev:
-    name: release dev
-    needs: test-matrix
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        node-version: [14.x]
-
-    steps:
-    - uses: actions/checkout@v2
-    - name: Use Node.js ${{ matrix.node-version }}
+    - name: build release with node.js ${{ matrix.node-version }}
       uses: actions/setup-node@v1
       with:
         node-version: ${{ matrix.node-version }}
-    - run: npm install
-    - run: npm install -g --save-dev shadow-cljs
-    - run: shadow-cljs release app
-    - run: rm -rf target/npm-build 
-    - run: mkdir -p target/npm-build
-    - run: cp mastodon-bot.js target/npm-build/
-    - run: cp package.json target/npm-build/
-    - run: cp README.md target/npm-build/
-    - run: tar -cz -C target/npm-build -f target/npm-build.tgz .
+      run: shadow-cljs release app
+      run: mkdir -p target/npm-build
+      run: cp mastodon-bot.js target/npm-build/
+      run: cp package.json target/npm-build/
+      run: cp README.md target/npm-build/
+      run: tar -cz -C target/npm-build -f target/npm-build.tgz .
 
     - name: Create Release
       id: create_release
@@ -56,6 +56,7 @@ jobs:
         release_name: Release ${{ github.ref }}
         draft: false
         prerelease: true
+
     - name: Upload Release Asset
       id: upload-release-asset 
       uses: actions/upload-release-asset@v1
@@ -66,4 +67,3 @@ jobs:
         asset_path: ./mastodon-bot.js
         asset_name: mastodon-bot.js
         asset_content_type: application/json
-      
\ No newline at end of file
diff --git a/.github/workflows/release-prod.yml b/.github/workflows/release-prod.yml
index 3661983..1806229 100644
--- a/.github/workflows/release-prod.yml
+++ b/.github/workflows/release-prod.yml
@@ -1,4 +1,4 @@
-name: Node.js CI
+name: release prod
 
 on:
   push:
@@ -14,37 +14,38 @@ jobs:
 
     steps:
     - uses: actions/checkout@v2
+
+    - name: Cache node modules
+      uses: actions/cache@v2
+      env:
+        cache-name: cache-node-modules
+      with:
+        # npm cache files are stored in `~/.npm` on Linux/macOS
+        path: ~/.npm
+        key: ${{ runner.os }}-build-${{ env.cache-name }}-${{ hashFiles('**/package.json') }}
+        restore-keys: |
+          ${{ runner.os }}-build-${{ env.cache-name }}-
+          ${{ runner.os }}-build-
+          ${{ runner.os }}-
+          
     - name: Use Node.js ${{ matrix.node-version }}
       uses: actions/setup-node@v1
       with:
         node-version: ${{ matrix.node-version }}
-    - run: npm install
-    - run: npm install -g --save-dev shadow-cljs
-    - run: shadow-cljs compile test
+      run: npm install
+      run: npm install -g --save-dev shadow-cljs
+      run: shadow-cljs compile test
 
-  release-build-dev:
-    name: release dev
-    needs: test-matrix
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        node-version: [14.x]
-
-    steps:
-    - uses: actions/checkout@v2
-    - name: Use Node.js ${{ matrix.node-version }}
+    - name: build release with node.js ${{ matrix.node-version }}
       uses: actions/setup-node@v1
       with:
         node-version: ${{ matrix.node-version }}
-    - run: npm install
-    - run: npm install -g --save-dev shadow-cljs
-    - run: shadow-cljs release app
-    - run: rm -rf target/npm-build 
-    - run: mkdir -p target/npm-build
-    - run: cp mastodon-bot.js target/npm-build/
-    - run: cp package.json target/npm-build/
-    - run: cp README.md target/npm-build/
-    - run: tar -cz -C target/npm-build -f target/npm-build.tgz .
+      run: shadow-cljs release app
+      run: mkdir -p target/npm-build
+      run: cp mastodon-bot.js target/npm-build/
+      run: cp package.json target/npm-build/
+      run: cp README.md target/npm-build/
+      run: tar -cz -C target/npm-build -f target/npm-build.tgz .
 
     - name: Create Release
       id: create_release
@@ -56,6 +57,7 @@ jobs:
         release_name: Release ${{ github.ref }}
         draft: false
         prerelease: false
+
     - name: Upload Release Asset
       id: upload-release-asset 
       uses: actions/upload-release-asset@v1
@@ -66,4 +68,3 @@ jobs:
         asset_path: ./mastodon-bot.js
         asset_name: mastodon-bot.js
         asset_content_type: application/json
-      
\ No newline at end of file
diff --git a/.github/workflows/test-pr.yml b/.github/workflows/test-pr.yml
index b636255..45186d5 100644
--- a/.github/workflows/test-pr.yml
+++ b/.github/workflows/test-pr.yml
@@ -1,4 +1,4 @@
-name: Node.js CI
+name: test PR
 
 on:
   pull_request:
@@ -14,10 +14,24 @@ jobs:
 
     steps:
     - uses: actions/checkout@v2
+
+    - name: Cache node modules
+      uses: actions/cache@v2
+      env:
+        cache-name: cache-node-modules
+      with:
+        # npm cache files are stored in `~/.npm` on Linux/macOS
+        path: ~/.npm
+        key: ${{ runner.os }}-build-${{ env.cache-name }}-${{ hashFiles('**/package.json') }}
+        restore-keys: |
+          ${{ runner.os }}-build-${{ env.cache-name }}-
+          ${{ runner.os }}-build-
+          ${{ runner.os }}-
+
     - name: Use Node.js ${{ matrix.node-version }}
       uses: actions/setup-node@v1
       with:
         node-version: ${{ matrix.node-version }}
-    - run: npm install
-    - run: npm install -g --save-dev shadow-cljs
-    - run: shadow-cljs compile test
+      run: npm install
+      run: npm install -g --save-dev shadow-cljs
+      run: shadow-cljs compile test