diff --git a/.appveyor.yml b/.appveyor.yml
index 359461a2..dfe92550 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -1,4 +1,4 @@
-version: 10.3.{build}
+version: 10.4.{build}
 
 configuration:
   - Release
diff --git a/gpxsee.pro b/gpxsee.pro
index dd56798a..4fb8a717 100644
--- a/gpxsee.pro
+++ b/gpxsee.pro
@@ -3,7 +3,7 @@ unix:!macx {
 } else {
     TARGET = GPXSee
 }
-VERSION = 10.3
+VERSION = 10.4
 
 QT += core \
     gui \
diff --git a/pkg/gpxsee64.nsi b/pkg/gpxsee64.nsi
index c20c9823..7fde3d2d 100644
--- a/pkg/gpxsee64.nsi
+++ b/pkg/gpxsee64.nsi
@@ -37,7 +37,7 @@ Unicode true
 ; The name of the installer
 Name "GPXSee"
 ; Program version
-!define VERSION "10.3"
+!define VERSION "10.4"
 
 ; The file to write
 OutFile "GPXSee-${VERSION}_x64.exe"