diff --git a/misc/version.txt b/misc/version.txt
index 4e0321e..cb36e65 100644
--- a/misc/version.txt
+++ b/misc/version.txt
@@ -1 +1 @@
-1.2.0.0
\ No newline at end of file
+1.2.1.0
\ No newline at end of file
diff --git a/src/BreCalClient/BreCalClient.csproj b/src/BreCalClient/BreCalClient.csproj
index 31cc3d0..dd0f203 100644
--- a/src/BreCalClient/BreCalClient.csproj
+++ b/src/BreCalClient/BreCalClient.csproj
@@ -8,8 +8,8 @@
     <SignAssembly>True</SignAssembly>
     <StartupObject>BreCalClient.App</StartupObject>
     <AssemblyOriginatorKeyFile>..\..\misc\brecal.snk</AssemblyOriginatorKeyFile>
-    <AssemblyVersion>1.2.0.10</AssemblyVersion>
-    <FileVersion>1.2.0.0</FileVersion>
+    <AssemblyVersion>1.2.1.0</AssemblyVersion>
+    <FileVersion>1.2.1.0</FileVersion>
     <Title>Bremen calling client</Title>
     <Description>A Windows WPF client for the Bremen calling API.</Description>
     <ApplicationIcon>containership.ico</ApplicationIcon>
diff --git a/src/BreCalClient/Properties/PublishProfiles/ClickOnceProfile.pubxml b/src/BreCalClient/Properties/PublishProfiles/ClickOnceProfile.pubxml
index 45959d2..8091412 100644
--- a/src/BreCalClient/Properties/PublishProfiles/ClickOnceProfile.pubxml
+++ b/src/BreCalClient/Properties/PublishProfiles/ClickOnceProfile.pubxml
@@ -5,7 +5,7 @@ https://go.microsoft.com/fwlink/?LinkID=208121.
 <Project>
   <PropertyGroup>
     <ApplicationRevision>10</ApplicationRevision>
-    <ApplicationVersion>1.2.0.10</ApplicationVersion>
+    <ApplicationVersion>1.2.1.0</ApplicationVersion>
     <BootstrapperEnabled>False</BootstrapperEnabled>
     <Configuration>Release</Configuration>
     <CreateWebPageOnPublish>True</CreateWebPageOnPublish>