diff --git a/configure.ac b/configure.ac
index 112afa40459..03d8287284e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -32,8 +32,8 @@
 # Version number is calculated as MAJOR * 1000000 + MINOR * 1000 + MICRO
 # Version string is in the form of MAJOR.MINOR.MICRO[sufix]
 #
-m4_define([TS_VERSION_S],[9.0.0])
-m4_define([TS_VERSION_N],[9000000])
+m4_define([TS_VERSION_S],[10.0.0])
+m4_define([TS_VERSION_N],[10000000])
 
 AC_INIT([Apache Traffic Server], TS_VERSION_S(), [dev@trafficserver.apache.org], [trafficserver], [https://trafficserver.apache.org])
 AC_PREREQ([2.59])
diff --git a/tools/package/trafficserver.spec b/tools/package/trafficserver.spec
index 3df89b95c0a..fd00335768a 100755
--- a/tools/package/trafficserver.spec
+++ b/tools/package/trafficserver.spec
@@ -26,7 +26,7 @@
 
 Summary:	Apache Traffic Server, a reverse, forward and transparent HTTP proxy cache
 Name:		trafficserver
-Version:	9.0.0
+Version:	10.0.0
 Release:	%{release}%{?dist}
 License:	Apache Software License 2.0 (AL2)
 Group:		System Environment/Daemons