diff --git a/octave.spec b/octave.spec
index eedfeea..4add536 100644
--- a/octave.spec
+++ b/octave.spec
@@ -37,7 +37,7 @@
 Name:           octave
 Epoch:          6
 Version:        8.4.0
-Release:        5%{?dist}
+Release:        6%{?dist}
 Summary:        A high-level language for numerical computations
 License:        GPLv3+
 URL:            http://www.octave.org
@@ -457,6 +457,9 @@ make check
 %{_pkgdocdir}/refcard*.pdf
 
 %changelog
+* Sat Mar 02 2024 Jiri Vanek <jvanek@redhat.com> - 6:8.4.0-6
+- Rebuilt for java-21-openjdk as system jdk
+
 * Sun Feb 04 2024 Orion Poplawski <orion@nwra.com> - 6:8.4.0-5
 - Rebuild with suitesparse 7.6.0