diff --git a/Changelog b/Changelog
index 20260a49d..01c67961d 100644
--- a/Changelog
+++ b/Changelog
@@ -1,6 +1,6 @@
 This file documents the revision history for the Open Monitoring Distribution (Labs Edition)
 
-next:
+4.20     Jun 10 2021
           - Naemon:
             - update core to 1.2.4
             - update livestatus to 1.2.4.1
@@ -11,7 +11,7 @@ next:
           - Icinga2 update to 2.11.8
           - Monitoring-Plugins: update to 2.3.1
           - Grafana
-            - Grafana update to 7.5.2
+            - Grafana update to 7.5.7
           - Prometheus:
             - Prometheus update to 2.27.1
             - node_exporter update to 1.1.1
diff --git a/Makefile.omd b/Makefile.omd
index f170961f7..a497aeba5 100644
--- a/Makefile.omd
+++ b/Makefile.omd
@@ -1,7 +1,7 @@
 # General settings included by all packages
 
-OMD_VERSION        = 4.00-labs-edition
-OMD_SERIAL         = 54
+OMD_VERSION        = 4.20-labs-edition
+OMD_SERIAL         = 56
 OMD_PATCH_LEVEL    = 1
 OMD_BASE           = /omd
 OMD_PHYSICAL_BASE  = /opt/omd
diff --git a/packages/omd/omd b/packages/omd/omd
index 0f8bc1af1..e99075740 100755
--- a/packages/omd/omd
+++ b/packages/omd/omd
@@ -33,7 +33,7 @@ import random
 import string
 from subprocess import *
 
-OMD_VERSION = "4.00-labs-edition"
+OMD_VERSION = "4.20-labs-edition"
 
 # Some global variables
 opt_verbose     = False