diff --git a/.release-version b/.release-version
index d16aef6bb..797687099 100644
--- a/.release-version
+++ b/.release-version
@@ -1 +1 @@
-13.5.1.20+0~mr13.5.1.20
+13.5.1.21+0~mr13.5.1.21
diff --git a/debian/changelog b/debian/changelog
index aa857de0c..768470a9d 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,10 @@
+ngcp-rtpengine (13.5.1.21+0~mr13.5.1.21) unstable; urgency=medium
+
+  [ Donat Zenichev ]
+  * [dda700b] MT#55283 call: add a socket family guard
+
+ -- Sipwise Jenkins Builder <jenkins@sipwise.com>  Tue, 21 Jul 2026 14:26:51 +0200
+
 ngcp-rtpengine (13.5.1.20+0~mr13.5.1.20) unstable; urgency=medium
 
   [ Richard Fuchs ]
diff --git a/el/rtpengine.spec b/el/rtpengine.spec
index 6313dfa5c..37805baad 100644
--- a/el/rtpengine.spec
+++ b/el/rtpengine.spec
@@ -1,5 +1,5 @@
 Name:		ngcp-rtpengine
-Version:	13.5.1.20+0~mr13.5.1.20
+Version:	13.5.1.21+0~mr13.5.1.21
 Release:	1%{?dist}
 Summary:	The Sipwise NGCP rtpengine daemon
 Group:		System Environment/Daemons