diff --git a/development/Win32/packaging/installer/ChangeLog.txt b/development/Win32/packaging/installer/ChangeLog.txt
index 314afc2acc..7ba1810006 100644
--- a/development/Win32/packaging/installer/ChangeLog.txt
+++ b/development/Win32/packaging/installer/ChangeLog.txt
@@ -1,4 +1,10 @@
-Changelog for LyX-214-3:
+Changelog for LyX-214-4:
+- fixed broken US English spell-checker.
+  (To benefit from it you must uninstall an already installed LyX 2.1.x and
+   then use this installer.)
+
+
+Changelog for LyX-214-3:
 - updated to MiKTeX 2.9 build 5721
 - updated to Imagemagick 6.9.2-3
 - updated spell-checker dictionaries for English (GB and US)
diff --git a/development/Win32/packaging/installer/settings.nsh b/development/Win32/packaging/installer/settings.nsh
index b591c6a1de..8fbd9522e3 100644
--- a/development/Win32/packaging/installer/settings.nsh
+++ b/development/Win32/packaging/installer/settings.nsh
@@ -14,7 +14,7 @@ These typically need to be modified for each LyX release
 !define APP_VERSION_REVISION 4
 !define APP_VERSION_EMERGENCY "" # use "1" for an emergency release of LyX otherwise ""
 !define APP_EMERGENCY_DOT "" # use "." for an emergency release of LyX otherwise ""
-!define APP_VERSION_BUILD 3 # Start with 1 for the installer releases of each version
+!define APP_VERSION_BUILD 4 # Start with 1 for the installer releases of each version
 
 !define APP_VERSION "${APP_VERSION_MAJOR}.${APP_VERSION_MINOR}.${APP_VERSION_REVISION}${APP_EMERGENCY_DOT}${APP_VERSION_EMERGENCY}" # Version to display