Bumped version to 1.3.0-dev
diff --git a/src/csharp/build_packages_dotnetcli.sh b/src/csharp/build_packages_dotnetcli.sh
index 442e3ac..f51b42b 100755
--- a/src/csharp/build_packages_dotnetcli.sh
+++ b/src/csharp/build_packages_dotnetcli.sh
@@ -66,7 +66,7 @@
 dotnet pack --configuration Release Grpc.HealthCheck/project.json --output ../../artifacts
 dotnet pack --configuration Release Grpc.Reflection/project.json --output ../../artifacts
 
-nuget pack Grpc.nuspec -Version "1.2.0-dev" -OutputDirectory ../../artifacts
-nuget pack Grpc.Tools.nuspec -Version "1.2.0-dev" -OutputDirectory ../../artifacts
+nuget pack Grpc.nuspec -Version "1.3.0-dev" -OutputDirectory ../../artifacts
+nuget pack Grpc.Tools.nuspec -Version "1.3.0-dev" -OutputDirectory ../../artifacts
 
 (cd ../../artifacts && zip csharp_nugets_dotnetcli.zip *.nupkg)