diff --git a/pom.xml b/pom.xml
index b603354..634164d 100644
--- a/pom.xml
+++ b/pom.xml
@@ -242,9 +242,9 @@
                 <artifactId>maven-compiler-plugin</artifactId>
                 <version>3.8.1</version>
                 <configuration>
-                    <release>8</release>
-                    <source>8</source>
-                    <target>8</target>
+                    <release>9</release>
+                    <source>9</source>
+                    <target>9</target>
                 </configuration>
             </plugin>
             <plugin>