diff --git a/pkgs/development/compilers/openjdk/21/source.json b/pkgs/development/compilers/openjdk/21/source.json
index a514f2dc908e..438a484ff2b6 100644
--- a/pkgs/development/compilers/openjdk/21/source.json
+++ b/pkgs/development/compilers/openjdk/21/source.json
@@ -1,6 +1,6 @@
 {
-  "hash": "sha256-8wUwxjhAGIp1bzny2e86vPH9q4vw1kLDoTjO7FrJbx4=",
+  "hash": "sha256-NgunrSUchIlHkaXM9h75U4xcf44ukCuhhPPHHGVOKXo=",
   "owner": "openjdk",
   "repo": "jdk21u",
-  "rev": "refs/tags/jdk-21.0.8+9"
+  "rev": "refs/tags/jdk-21.0.9+8"
 }