diff --git a/pom.xml b/pom.xml
index 55b5c20..22dc811 100644
--- a/pom.xml
+++ b/pom.xml
@@ -20,7 +20,7 @@
     </issueManagement>
 
     <properties>
-        <java.version>17</java.version>
+        <java.version>21</java.version>
         <maven.compiler.source>${java.version}</maven.compiler.source>
         <maven.compiler.target>${java.version}</maven.compiler.target>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
@@ -55,6 +55,8 @@
                             <version>${google.auto.service.version}</version>
                         </path>
                     </annotationProcessorPaths>
+                    <source>21</source>
+                    <target>21</target>
                 </configuration>
             </plugin>
             <plugin>
diff --git a/src/main/java/dev/struchkov/haiti/utils/fieldconstants/processor/FieldNameProcessor.java b/src/main/java/dev/struchkov/haiti/utils/fieldconstants/processor/FieldNameProcessor.java
index 0506f7f..1bb43be 100644
--- a/src/main/java/dev/struchkov/haiti/utils/fieldconstants/processor/FieldNameProcessor.java
+++ b/src/main/java/dev/struchkov/haiti/utils/fieldconstants/processor/FieldNameProcessor.java
@@ -18,7 +18,7 @@ import javax.lang.model.element.TypeElement;
 import java.util.Set;
 
 @SupportedAnnotationTypes("dev.struchkov.haiti.utils.fieldconstants.annotation.FieldNames")
-@SupportedSourceVersion(SourceVersion.RELEASE_17)
+@SupportedSourceVersion(SourceVersion.RELEASE_21)
 @AutoService(Processor.class)
 public class FieldNameProcessor extends AbstractProcessor {