use default compiler
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 824eb3f..9a472d1 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -15,10 +15,10 @@
     steps:
     - uses: actions/checkout@v1
 
-    - name: Install Dependencies
-      env:
-        dependency_packages: build-essential g++-5
-      run: sudo apt-get update && sudo apt-get -y install ${dependency_packages}
+    #- name: Install Dependencies
+    #  env:
+    #    dependency_packages: build-essential g++-5
+    #  run: sudo apt-get update && sudo apt-get -y install ${dependency_packages}
 
     - name: Build
       run: |