diff --git a/build.gradle b/build.gradle
index 5b78682dc..3dd07dc7b 100644
--- a/build.gradle
+++ b/build.gradle
@@ -6,7 +6,7 @@ plugins {
 
 subprojects {
     tasks.withType(Test) {
-        maxHeapSize = "3g"        
+        maxHeapSize = "6g"        
     }
 }
 
diff --git a/gradle.properties b/gradle.properties
index 96d2607f6..94bdabe90 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -11,7 +11,7 @@ hibernate.version=5.2.11.Final
 
 lucene.version=7.2.1
 
-org.gradle.jvmargs=-Xmx1g -XX:-UseGCOverheadLimit
+org.gradle.jvmargs=-Xmx6g
 
 # set token in personal global
 i2.github.token=