diff --git a/pom.xml b/pom.xml
index d379f88..e7452ac 100644
--- a/pom.xml
+++ b/pom.xml
@@ -16,6 +16,17 @@
 
     <build>
         <sourceDirectory>src</sourceDirectory>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>3.3</version>
+                <configuration>
+                    <source>5</source>
+                    <target>5</target>
+                </configuration>
+            </plugin>
+        </plugins>
     </build>
 
     <dependencies>