diff --git a/ci/travis_osx_install b/ci/travis_osx_install
index 5311a9cc5c10e027f6b63698d89378123e03ca93..e83217373345dbb95a761e346dbbbfb97072f48a 100755
--- a/ci/travis_osx_install
+++ b/ci/travis_osx_install
@@ -2,6 +2,7 @@
 
 brew install gcc@7
 brew outdated gcc@7 || brew upgrade gcc@7
+brew link --overwrite gcc@7
 
 SRC_DIR=$(pwd)
 PREFIX_DIR=$SRC_DIR/local