diff --git a/configure.mk b/configure.mk
index 9134f2da..58ca8d50 100755
--- a/configure.mk
+++ b/configure.mk
@@ -80,7 +80,7 @@ ifneq ($(MAKECMDGOALS),clean)
 # -------- #
 
 $(call add_substitution, PACKAGE_NAME,         hades)
-$(call add_substitution, PACKAGE_VERSION,      0.5.0)
+$(call add_substitution, PACKAGE_VERSION,      0.5.1)
 $(call add_substitution, PACKAGE_DESCRIPTION,  Distributed AG DSN RADIUS MAC authentication. Site node agent and captive portal)
 $(call add_substitution, PACKAGE_AUTHOR,       Sebastian Schrader)
 $(call add_substitution, PACKAGE_AUTHOR_EMAIL, sebastian.schrader@agdsn.de)
diff --git a/debian/changelog b/debian/changelog
index 5642a612..34d51c5b 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,13 @@
+hades (0.5.1) bullseye; urgency=high
+
+  * Various important bugfixes in the RPC api (hades-agent):
+    * Fix bug breaking any RPC method call (GH-119)
+    * Fix bug breaking the `get_auth_attempts_at_port` RPC method
+    * Fix two bugs breaking the `get_auth_dhcp_leases_of_ip` RPC method
+    * Fix bug breaking the `get_dhcp_leases_of_mac` RPC method
+
+ --  <lukas.juhrich@agdsn.de>  Tue, 20 Sep 2022 12:28:00 +0000
+
 hades (0.5.0) bullseye; urgency=low
 
   * Upgrade to Debian bullseye (GH-94, GH-99, GH-103, GH-113)