diff --git a/.appveyor.yml b/.appveyor.yml
index 3427cab8..aeead642 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -1,4 +1,4 @@
-version: 9.0.{build}
+version: 9.1.{build}
 
 configuration:
   - Release
diff --git a/gpxsee.pro b/gpxsee.pro
index 3b3e849e..674a76ac 100644
--- a/gpxsee.pro
+++ b/gpxsee.pro
@@ -3,7 +3,7 @@ unix:!macx {
 } else {
     TARGET = GPXSee
 }
-VERSION = 9.0
+VERSION = 9.1
 
 QT += core \
     gui \
diff --git a/pkg/gpxsee.nsi b/pkg/gpxsee.nsi
index 9e81eb7d..db3162d5 100644
--- a/pkg/gpxsee.nsi
+++ b/pkg/gpxsee.nsi
@@ -9,7 +9,7 @@ Unicode true
 ; The name of the installer
 Name "GPXSee"
 ; Program version
-!define VERSION "9.0"
+!define VERSION "9.1"
 
 ; The file to write
 OutFile "GPXSee-${VERSION}.exe"
diff --git a/pkg/gpxsee64.nsi b/pkg/gpxsee64.nsi
index 9cdab2eb..2a07457c 100644
--- a/pkg/gpxsee64.nsi
+++ b/pkg/gpxsee64.nsi
@@ -9,7 +9,7 @@ Unicode true
 ; The name of the installer
 Name "GPXSee"
 ; Program version
-!define VERSION "9.0"
+!define VERSION "9.1"
 
 ; The file to write
 OutFile "GPXSee-${VERSION}_x64.exe"