Index: Ringtoets/Piping/src/Ringtoets.Piping.Primitives/Ringtoets.Piping.Primitives.csproj
===================================================================
diff -u -r6ce47c27ad8dc0e84fdb290be480f5f66b61d8be -rba58751a29f61588db5f6a206ee1f403cfb95df7
--- Ringtoets/Piping/src/Ringtoets.Piping.Primitives/Ringtoets.Piping.Primitives.csproj	(.../Ringtoets.Piping.Primitives.csproj)	(revision 6ce47c27ad8dc0e84fdb290be480f5f66b61d8be)
+++ Ringtoets/Piping/src/Ringtoets.Piping.Primitives/Ringtoets.Piping.Primitives.csproj	(.../Ringtoets.Piping.Primitives.csproj)	(revision ba58751a29f61588db5f6a206ee1f403cfb95df7)
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project ToolsVersion="15.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup>
     <ProjectGuid>{14C6F716-64E2-4BC4-A1EF-05865FCEFA4C}</ProjectGuid>
     <RootNamespace>Ringtoets.Piping.Primitives</RootNamespace>