diff --git a/.travis.yml b/.travis.yml
index 776a5aaa560..f9dbf428c84 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -43,7 +43,7 @@ before_install:
   && set +x && source secrets.env && set -x
   || true
 - export GOOGLE_CLOUD_PROJECT=java-docs-samples-tests
-- export MAVEN_OPTS='-Xmx2048m -XX:+PrintFlagsInitial -XX:+PrintFlagsFinal'
+- export MAVEN_OPTS='-Xmx6g -Xms1g -XX:-UseGCOverheadLimit -XX:+UseG1GC -XX:+PrintFlagsInitial -XX:+PrintFlagsFinal'
 # Skip the install step, since Maven will download the dependencies we need
 # when the test build runs.
 # http://stackoverflow.com/q/31945809/101923