diff --git a/.travis.yml b/.travis.yml
index 0892bc27c..7f3498cb7 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,12 +2,6 @@ language: python
 python:
   - '3.4'
 sudo: false
-addons:
-  apt:
-    sources:
-      - ubuntu-toolchain-r-test
-    packages:
-      - libstdc++6
 env:
   global:
     - BUILD_SOC=1