diff --git a/.travis.yml b/.travis.yml
index 71d8ed998db..9a697a823b1 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,7 +6,7 @@ jdk:
   - oraclejdk8
 env:
   global:
-    - MAVEN_OPTS="-XX:MaxPermSize=512m -Xmx4g"
+    - MAVEN_OPTS="-XX:MaxPermSize=512m -Xmx2g"
 
 cache:
   directories: