diff --git a/pom.xml b/pom.xml
index a76884c..a4911a1 100644
--- a/pom.xml
+++ b/pom.xml
@@ -21,8 +21,8 @@
         <artifactId>maven-compiler-plugin</artifactId>
         <version>2.3.2</version>
         <configuration>
-          <source>1.6</source>
-          <target>1.6</target>
+          <source>1.7</source>
+          <target>1.7</target>
         </configuration>
       </plugin>
       <plugin>
@@ -179,7 +179,7 @@
     <dependency>
       <groupId>net.sourceforge.plantuml</groupId>
       <artifactId>plantuml</artifactId>
-      <version>1.2020.4</version>
+      <version>1.2020.6</version>
     </dependency>
     <dependency>
       <groupId>javax.servlet</groupId>