diff --git a/Dockerfile b/Dockerfile
index a6699d5..16ce405 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -5,6 +5,7 @@ COPY pom.xml .
 RUN mvn -ntp dependency:go-offline
 
 COPY src/ /tmp/hapi-fhir-jpaserver-starter/src/
+RUN set MAVEN_OPTS="-Xmx1024m"
 RUN mvn clean install -DskipTests
 
 FROM tomcat:9.0.38-jdk11-openjdk-slim-buster