diff --git a/binding/csharp/IP2Region.Net/IP2Region.Net.csproj b/binding/csharp/IP2Region.Net/IP2Region.Net.csproj
index badc071..380ec52 100644
--- a/binding/csharp/IP2Region.Net/IP2Region.Net.csproj
+++ b/binding/csharp/IP2Region.Net/IP2Region.Net.csproj
@@ -2,7 +2,7 @@
 
     <PropertyGroup>
         <id>IP2Region.Net</id>
-        <version>2.1.0</version>
+        <version>3.0.0</version>
         <title>IP2Region.Net</title>
         <authors>Alan Lee</authors>
         <PackageLicenseExpression>Apache-2.0</PackageLicenseExpression>