diff --git a/querydsl-root/pom.xml b/querydsl-root/pom.xml
index 53951aa41..5b236d623 100644
--- a/querydsl-root/pom.xml
+++ b/querydsl-root/pom.xml
@@ -360,7 +360,7 @@
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-surefire-plugin</artifactId>
         <configuration>
-          <argLine>-Xms256m -Xmx512m -XX:MaxPermSize=512m</argLine>
+          <argLine>-Xms256m -Xmx512m</argLine>
           <excludedGroups>com.querydsl.core.testutil.ExternalDB</excludedGroups>
         </configuration>
         <dependencies>
diff --git a/querydsl-scala/pom.xml b/querydsl-scala/pom.xml
index 84b39b795..e17fddbba 100644
--- a/querydsl-scala/pom.xml
+++ b/querydsl-scala/pom.xml
@@ -203,7 +203,7 @@
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-surefire-plugin</artifactId>
         <configuration>
-            <argLine>-Xss2m</argLine>
+          <argLine>-Xms256m -Xmx512m -Xss2m</argLine>
         </configuration>                
       </plugin>