diff --git a/pom.xml b/pom.xml
index d87f72d..737b5ba 100644
--- a/pom.xml
+++ b/pom.xml
@@ -45,8 +45,8 @@
                 <artifactId>maven-compiler-plugin</artifactId>
                 <version>3.6.1</version>
                 <configuration>
-                    <source>9</source>
-                    <target>9</target>
+                    <source>11</source>
+                    <target>11</target>
                     <encoding>UTF-8</encoding>
                 </configuration>
             </plugin>