diff --git a/pom.xml b/pom.xml
index e1f57cf..aa57a04 100644
--- a/pom.xml
+++ b/pom.xml
@@ -36,6 +36,14 @@
         <artifactId>maven-surefire-plugin</artifactId>
         <version>3.2.5</version>
       </plugin>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-compiler-plugin</artifactId>
+        <configuration>
+          <source>21</source>
+          <target>21</target>
+        </configuration>
+      </plugin>
     </plugins>
   </build>
 </project>