diff --git a/circle.yml b/circle.yml
index ab16a3c..4fd030d 100644
--- a/circle.yml
+++ b/circle.yml
@@ -1,16 +1,11 @@
 machine:
+  pre:
+    - sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-4.9 20
   environment:
     LOGANALYZE_DIRPATH_LOG: dronekit-la-testdata-3dr
 
 dependencies:
   pre:
-    - sudo apt-get update -y
-    - sudo apt-get install -y build-essential
-    - sudo apt-get install -y g++
-    - sudo apt-get install -y libjsoncpp-dev libjsoncpp0
-    - sudo rm /usr/bin/g++ /usr/bin/gcc
-    - sudo ln -s /usr/bin/g++-4.9 /usr/bin/g++
-    - sudo ln -s /usr/bin/gcc-4.9 /usr/bin/gcc
     - git submodule init
     - git submodule update