diff --git a/Makefile.am b/Makefile.am
index 24853c9e..576a0acd 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -38,7 +38,7 @@ RELEASE = -release 2.1
 #
 # Once an RC is out, DO NOT MAKE ANY ABI-BREAKING CHANGES IN THAT SERIES
 # UNLESS YOU REALLY REALLY HAVE TO.
-VERSION_INFO = 1:0:0
+VERSION_INFO = 3:0:0
 
 # History:          RELEASE    VERSION_INFO
 #  2.0.1-alpha --     2.0        1:0:0
@@ -65,8 +65,8 @@ VERSION_INFO = 1:0:0
 #
 # For Libevent 2.1:
 #  2.1.1-alpha --     2.1        1:0:0
-#  2.1.2-alpha--      2.2        2:0:1 (Backward-compatible)
-
+#  2.1.2-alpha --     2.1        1:0:0 (should have been 2:0:1)
+#  2.1.3-alpha --     2.1        3:0:0 (ABI changed slightly)
 
 # ABI version history for this package effectively restarts every time
 # we change RELEASE.  Version 1.4.x had RELEASE of 1.4.
diff --git a/WIN32-Code/event2/event-config.h b/WIN32-Code/event2/event-config.h
index 63e6a588..9773331f 100644
--- a/WIN32-Code/event2/event-config.h
+++ b/WIN32-Code/event2/event-config.h
@@ -277,7 +277,7 @@
 /* #undef EVENT__HAVE_WORKING_KQUEUE */
 
 /* Numeric representation of the version */
-#define EVENT__NUMERIC_VERSION 0x02010201
+#define EVENT__NUMERIC_VERSION 0x02010300
 
 /* Name of package */
 #define EVENT__PACKAGE "libevent"
@@ -334,7 +334,7 @@
 #define EVENT__TIME_WITH_SYS_TIME 1
 
 /* Version number of package */
-#define EVENT__VERSION "2.1.2-alpha-dev"
+#define EVENT__VERSION "2.1.3-alpha"
 
 /* Define to appropriate substitue if compiler doesnt have __func__ */
 #define EVENT____func__ __FUNCTION__
diff --git a/configure.ac b/configure.ac
index e5a86114..ecd4b01f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -5,7 +5,7 @@ dnl See LICENSE for copying information.
 dnl
 dnl Original version Dug Song <dugsong@monkey.org>
 
-AC_INIT(libevent,2.1.2-alpha-dev)
+AC_INIT(libevent,2.1.3-alpha)
 AC_PREREQ(2.59)
 AC_CONFIG_SRCDIR(event.c)
 
@@ -14,7 +14,7 @@ AM_INIT_AUTOMAKE
 dnl AM_SILENT_RULES req. automake 1.11.  [no] defaults V=1
 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
 AC_CONFIG_HEADERS(config.h  evconfig-private.h:evconfig-private.h.in)
-AC_DEFINE(NUMERIC_VERSION, 0x02010201, [Numeric representation of the version])
+AC_DEFINE(NUMERIC_VERSION, 0x02010300, [Numeric representation of the version])
 
 dnl Initialize prefix.
 if test "$prefix" = "NONE"; then