diff --git a/build.gradle b/build.gradle
index 5b50bfd..91ed564 100644
--- a/build.gradle
+++ b/build.gradle
@@ -10,8 +10,8 @@ group = 'io.github.reqstool'
 version = '0.1.0'
 
 java {
-    sourceCompatibility = JavaVersion.VERSION_17
-    targetCompatibility = JavaVersion.VERSION_17
+    sourceCompatibility = JavaVersion.VERSION_21
+    targetCompatibility = JavaVersion.VERSION_21
 }
 
 repositories {