diff --git a/VectoCommon/VectoCommon/VectoCommon.csproj b/VectoCommon/VectoCommon/VectoCommon.csproj
index 7cc939122b8cd50fb3afd7e83235808c32d2cf15..7400bea4515009100d2f07436b12aaeae59d2d54 100644
--- a/VectoCommon/VectoCommon/VectoCommon.csproj
+++ b/VectoCommon/VectoCommon/VectoCommon.csproj
@@ -27,7 +27,7 @@
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|AnyCPU'">
     <DefineConstants />
     <DebugType>none</DebugType>
-    <WarningLevel>5</WarningLevel>
+    <WarningLevel>4</WarningLevel>
     <DebugSymbols>false</DebugSymbols>
   </PropertyGroup>