diff --git a/Jenkinsfile b/Jenkinsfile
index c18955b9..0f344249 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -47,7 +47,7 @@ for (int i = 0; i < dockerPlatforms.size(); i++) {
 
 /****************** osx builds (on host) */
 def osxPlatforms = [
-  ["gcc", ['CC=gcc-7', 'CXX=g++-7']],
+  ["gcc", ['CC=gcc-9', 'CXX=g++-9']],
   ["clang", ['CC=$BREW/opt/llvm/bin/clang', 'CXX=$BREW/opt/llvm/bin/clang++', 'CXXFLAGS=-I$BREW/opt/llvm/include', 'LDFLAGS=-L$BREW/opt/llvm/lib']]
 ]
 for (int i = 0; i < osxPlatforms.size(); i++) {