diff --git a/_posts/2023-10-05-gerrit-3.9-release-plan.md b/_posts/2023-10-05-gerrit-3.9-release-plan.md
index e6e994e..f40695d 100644
--- a/_posts/2023-10-05-gerrit-3.9-release-plan.md
+++ b/_posts/2023-10-05-gerrit-3.9-release-plan.md
@@ -20,10 +20,15 @@
 | Nov 17    | Release `3.9.0-rc4`                                |
 | Nov 24    | Final release of `3.9.0`                           |
 
-## Java 21
+## Java 17
 
 The language level used for Gerrit source code will stay on Java 11,
-however, Gerrit will be also built and distributed for Java 21.
+however, Gerrit will be also built and distributed for Java 17.
+
+The reasons not to use LTS Java 21 directly are:
+
+  * Java 17 is an LTS anyway, so it is a stable release we can rely on
+  * Java 21 is not widely adopted yet by Bazel, OSes
 
 ## End-to-end Testing