diff --git a/build.gradle b/build.gradle
index 1f78f791..4324e7ee 100644
--- a/build.gradle
+++ b/build.gradle
@@ -35,5 +35,5 @@ externalPublishing {
 }
 
 jdks {
-    daemonTarget = 17
+    daemonTarget = 21
 }
diff --git a/gradle/gradle-daemon-jdk-version b/gradle/gradle-daemon-jdk-version
index 98d9bcb7..aabe6ec3 100644
--- a/gradle/gradle-daemon-jdk-version
+++ b/gradle/gradle-daemon-jdk-version
@@ -1 +1 @@
-17
+21