diff --git a/scripts/gerbil_middleware/Makefile b/scripts/gerbil_middleware/Makefile
index 519a9f7..e899701 100644
--- a/scripts/gerbil_middleware/Makefile
+++ b/scripts/gerbil_middleware/Makefile
@@ -1,10 +1,10 @@
 default: build dockerize
 
 build:
-    mvn clean package -U
+	mvn clean package -U
 
 dockerize:
-    docker build -t git.project-hobbit.eu:4567/gerbil/spotwrapnifws4test .
+	docker build -t git.project-hobbit.eu:4567/gerbil/spotwrapnifws4test .
 
 push:
-    docker push git.project-hobbit.eu:4567/gerbil/spotwrapnifws4test
\ No newline at end of file
+	docker push git.project-hobbit.eu:4567/gerbil/spotwrapnifws4test
diff --git a/scripts/gerbil_middleware/pom.xml b/scripts/gerbil_middleware/pom.xml
index 97e8aa0..c1ff764 100644
--- a/scripts/gerbil_middleware/pom.xml
+++ b/scripts/gerbil_middleware/pom.xml
@@ -76,7 +76,7 @@
 		<dependency>
 			<groupId>org.apache.jena</groupId>
 			<artifactId>jena-core</artifactId>
-			<version>4.2.0</version>
+			<version>2.11.1</version>
 		</dependency>
 		<dependency>
 			<groupId>org.apache.jena</groupId>
@@ -117,6 +117,11 @@
 					<target>${java.version}</target>
 				</configuration>
 			</plugin>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-war-plugin</artifactId>
+				<version>3.3.1</version>
+			</plugin>
 		</plugins>
 	</build>
 	<packaging>war</packaging>