diff --git a/.travis.yml b/.travis.yml
index aa34ef50..e3dd7353 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -99,11 +99,11 @@ matrix:
     addons:
       apt:
         sources: ['ubuntu-toolchain-r-test']
-        packages: ['g++-4.9', 'ninja-build']
+        packages: ['g++-7', 'ninja-build']
     before_script:
       - pip install --user cpp-coveralls
     after_success:
-      - coveralls --build-root test --include include/nlohmann --gcov 'gcov-4.9' --gcov-options '\-lp'
+      - coveralls --build-root test --include include/nlohmann --gcov 'gcov-7' --gcov-options '\-lp'
     env:
       - COMPILER=g++-4.9
       - CMAKE_OPTIONS=-DJSON_Coverage=ON