diff --git a/openjpa-persistence-jdbc/pom.xml b/openjpa-persistence-jdbc/pom.xml
index f59d09a92..548bed004 100644
--- a/openjpa-persistence-jdbc/pom.xml
+++ b/openjpa-persistence-jdbc/pom.xml
@@ -60,6 +60,7 @@
                             <groupId>org.apache.maven.plugins</groupId>
                             <artifactId>maven-surefire-plugin</artifactId>
                             <configuration>
+                                <argLine>-Xmx500M</argLine>
                                 <systemProperties>
                                     <property>
                                         <name>openjpa.Log</name>