diff --git a/configure b/configure
index 57a2efce17..a7966869ad 100755
--- a/configure
+++ b/configure
@@ -1800,7 +1800,7 @@ test -n "$target_alias" &&
 wx_major_version_number=2
 wx_minor_version_number=8
 wx_release_number=4
-wx_subrelease_number=0
+wx_subrelease_number=1
 
 WX_RELEASE=$wx_major_version_number.$wx_minor_version_number
 WX_VERSION=$WX_RELEASE.$wx_release_number
diff --git a/configure.in b/configure.in
index b996a7e920..b4eb6d7b4d 100644
--- a/configure.in
+++ b/configure.in
@@ -35,7 +35,7 @@ dnl wx_release_number += 1
 wx_major_version_number=2
 wx_minor_version_number=8
 wx_release_number=4
-wx_subrelease_number=0
+wx_subrelease_number=1
 
 WX_RELEASE=$wx_major_version_number.$wx_minor_version_number
 WX_VERSION=$WX_RELEASE.$wx_release_number
diff --git a/include/wx/version.h b/include/wx/version.h
index 91f6b1d905..d6b118b65f 100644
--- a/include/wx/version.h
+++ b/include/wx/version.h
@@ -29,7 +29,7 @@
 #define wxMAJOR_VERSION      2
 #define wxMINOR_VERSION      8
 #define wxRELEASE_NUMBER     4
-#define wxSUBRELEASE_NUMBER  0
+#define wxSUBRELEASE_NUMBER  1
 #define wxVERSION_STRING   _T("wxWidgets 2.8.4")
 
 /*  nothing to update below this line when updating the version */
diff --git a/wxPython/config.py b/wxPython/config.py
index 0850373317..23e6fc9d98 100644
--- a/wxPython/config.py
+++ b/wxPython/config.py
@@ -39,7 +39,7 @@ import distutils.command.clean
 VER_MAJOR        = 2      # The first three must match wxWidgets
 VER_MINOR        = 8
 VER_RELEASE      = 4
-VER_SUBREL       = 0      # wxPython release num for x.y.z release of wxWidgets
+VER_SUBREL       = 1      # wxPython release num for x.y.z release of wxWidgets
 VER_FLAGS        = ""     # release flags, such as prerelease or RC num, etc.
 
 DESCRIPTION      = "Cross platform GUI toolkit for Python"