diff --git a/circle.yml b/circle.yml
index 9651f9412f..d7dd999e41 100644
--- a/circle.yml
+++ b/circle.yml
@@ -6,8 +6,8 @@ machine:
   java:
     version: oraclejdk8
   environment:
-    _JAVA_OPTIONS: "-Xms512m -Xmx1024m"
-    GRADLE_OPTS: '-Dorg.gradle.jvmargs="-Xmx1024m -XX:+HeapDumpOnOutOfMemoryError"'
+    _JAVA_OPTIONS: "-Xms512m -Xmx768m"
+    GRADLE_OPTS: '-Dorg.gradle.jvmargs="-Xmx768m -XX:+HeapDumpOnOutOfMemoryError"'
     TERM: dumb
 dependencies:
   pre: