diff --git a/.travis.yml b/.travis.yml
index 8018bf5bd5..154bceb91b 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -29,6 +29,8 @@ install:
   - if [ "$TRAVIS_OS_NAME" = "linux" ]; then export CXX="g++-4.9" CC="gcc-4.9"; fi
 
 before_script:
+  - gcc --version
+  - g++ --version
   - rvm install ruby-2.4.0
   - rvm use ruby-2.4.0
   - python --version