diff --git a/.kokoro/osx.sh b/.kokoro/osx.sh
index 1c2f8d246..fd1375d38 100644
--- a/.kokoro/osx.sh
+++ b/.kokoro/osx.sh
@@ -27,9 +27,9 @@ function set_failed_status {
     EXIT_STATUS=1
 }
 
-gem install bundle
+gem install bundler --version 1.17.3
 
 
 (bundle update && bundle exec rake) || set_failed_status
 
-exit $EXIT_STATUS
\ No newline at end of file
+exit $EXIT_STATUS