diff --git a/GitVersion.yml b/GitVersion.yml
index 26439bf5dd..d82786726b 100644
--- a/GitVersion.yml
+++ b/GitVersion.yml
@@ -1,4 +1,4 @@
-assembly-versioning-scheme: MajorMinorPatch
+assembly-versioning-scheme: None
 mode: ContinuousDeployment
 tag-prefix: '[vV]'
 continuous-delivery-fallback-tag: ci
diff --git a/Ix.NET/Source/build-new.ps1 b/Ix.NET/Source/build-new.ps1
index acbdfd73af..5fb3448e7a 100644
--- a/Ix.NET/Source/build-new.ps1
+++ b/Ix.NET/Source/build-new.ps1
@@ -18,7 +18,7 @@ $msbuildExe = Join-Path $msbuild.MSBuildToolsPath "msbuild.exe"
 .\nuget.exe install -excludeversion -pre gitversion.commandline -Version 3.5.5-pullrequest0921 -outputdirectory packages
 
 #update version
-.\packages\gitversion.commandline\tools\gitversion.exe /l console /output buildserver /updateassemblyinfo /excludeUpdateAssemblyVersion
+.\packages\gitversion.commandline\tools\gitversion.exe /l console /output buildserver /updateassemblyinfo
 
 $versionObj = .\packages\gitversion.commandline\tools\gitversion.exe | ConvertFrom-Json 
 
diff --git a/Rx.NET/Source/build-new.ps1 b/Rx.NET/Source/build-new.ps1
index 0801dd7d8a..940f0ce1e1 100644
--- a/Rx.NET/Source/build-new.ps1
+++ b/Rx.NET/Source/build-new.ps1
@@ -14,7 +14,7 @@ $msbuildExe = Join-Path $msbuild.MSBuildToolsPath "msbuild.exe"
 
 # get version
 .\nuget.exe install -excludeversion -pre gitversion.commandline -Version 3.5.5-pullrequest0921 -outputdirectory packages
-.\packages\gitversion.commandline\tools\gitversion.exe /l console /output buildserver /updateassemblyinfo /excludeUpdateAssemblyVersion
+.\packages\gitversion.commandline\tools\gitversion.exe /l console /output buildserver /updateassemblyinfo
 
 $versionObj = .\packages\gitversion.commandline\tools\gitversion.exe | ConvertFrom-Json