diff --git a/de.variantsync.core/pom.xml b/de.variantsync.core/pom.xml
index 01e0092..5cfd5f5 100644
--- a/de.variantsync.core/pom.xml
+++ b/de.variantsync.core/pom.xml
@@ -85,8 +85,8 @@
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-compiler-plugin</artifactId>
         <configuration>
-          <source>8</source>
-          <target>8</target>
+          <source>11</source>
+          <target>11</target>
         </configuration>
       </plugin>
     </plugins>