diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index a931540e..af963922 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -13,12 +13,12 @@ name: "CodeQL"
 
 on:
   push:
-    branches: [ master ]
+    branches: [master]
   pull_request:
     # The branches below must be a subset of the branches above
-    branches: [ master ]
+    branches: [master]
   schedule:
-    - cron: '38 23 * * 6'
+    - cron: "38 23 * * 6"
 
 jobs:
   analyze:
@@ -28,31 +28,42 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        language: [ 'cpp', 'javascript', 'python' ]
+        language: ["cpp", "javascript", "python"]
         # CodeQL supports [ 'cpp', 'csharp', 'go', 'java', 'javascript', 'python' ]
         # Learn more:
         # https://docs.github.com/en/free-pro-team@latest/github/finding-security-vulnerabilities-and-errors-in-your-code/configuring-code-scanning#changing-the-languages-that-are-analyzed
 
     steps:
-    - name: Checkout repository
-      uses: actions/checkout@v2
+      - name: Checkout repository
+        uses: actions/checkout@v2
 
-    # Initializes the CodeQL tools for scanning.
-    - name: Initialize CodeQL
-      uses: github/codeql-action/init@v1
-      with:
-        languages: ${{ matrix.language }}
-        # If you wish to specify custom queries, you can do so here or in a config file.
-        # By default, queries listed here will override any specified in a config file.
-        # Prefix the list here with "+" to use these queries and those in the config file.
-        # queries: ./path/to/local/query, your-org/your-repo/queries@main
+      # Initializes the CodeQL tools for scanning.
+      - name: Initialize CodeQL
+        uses: github/codeql-action/init@v1
+        with:
+          languages: ${{ matrix.language }}
+          # If you wish to specify custom queries, you can do so here or in a config file.
+          # By default, queries listed here will override any specified in a config file.
+          # Prefix the list here with "+" to use these queries and those in the config file.
+          # queries: ./path/to/local/query, your-org/your-repo/queries@main
 
-    # Autobuild attempts to build any compiled languages  (C/C++, C#, or Java).
+      # Autobuild attempts to build any compiled languages  (C/C++, C#, or Java).
 
-    - run: |
-       chmod +x setup.sh && chmod +x source/build.sh && sudo mkdir -p /build/cache && sudo chmod -R 777 /build
-       ./setup.sh
-       cd source && ./build.sh
+      - name: chmod
+        run: chmod +x setup.sh && chmod +x source/build.sh && sudo mkdir -p /build/cache && sudo chmod -R 777 /build
 
-    - name: Perform CodeQL Analysis
-      uses: github/codeql-action/analyze@v1
+      - name: Cached compiler source files
+        uses: actions/cache@v2.1.4
+        env:
+          cache-name: cache-compilers
+        with:
+          path: /build/cache
+          key: ${{ runner.os }}-build-${{ env.cache-name }}
+          restore-keys: |
+            ${{ runner.os }}-
+
+      - name: setup
+        run: ./setup.sh && cd source && ./build.sh
+
+      - name: Perform CodeQL Analysis
+        uses: github/codeql-action/analyze@v1