diff --git a/RingCentral.Net/RestClient.cs b/RingCentral.Net/RestClient.cs
index 6b168584a..d20a48eb9 100644
--- a/RingCentral.Net/RestClient.cs
+++ b/RingCentral.Net/RestClient.cs
@@ -45,7 +45,7 @@ public RestClient(string clientId, string clientSecret, bool production = false,
 
         public async Task<HttpResponseMessage> Request(HttpRequestMessage httpRequestMessage)
         {
-            httpRequestMessage.Headers.Add("X-User-Agent", $"{appName}/{appVersion} RingCentral.Net/2.4.0");
+            httpRequestMessage.Headers.Add("X-User-Agent", $"{appName}/{appVersion} RingCentral.Net/3.0.0");
             httpRequestMessage.Headers.Authorization = token == null
                 ? new AuthenticationHeaderValue("Basic",
                     Convert.ToBase64String(
diff --git a/RingCentral.Net/RingCentral.Net.csproj b/RingCentral.Net/RingCentral.Net.csproj
index a3b5e580c..a6323e6e0 100644
--- a/RingCentral.Net/RingCentral.Net.csproj
+++ b/RingCentral.Net/RingCentral.Net.csproj
@@ -3,7 +3,7 @@
     <PropertyGroup>
         <TargetFramework>netstandard2.0</TargetFramework>
         <PackageId>RingCentral.Net</PackageId>
-        <PackageVersion>2.4.0</PackageVersion>
+        <PackageVersion>3.0.0</PackageVersion>
         <Authors>Tyler Liu (tyler.liu@ringcentral.com)</Authors>
         <Description>RingCentral SDK for .NET</Description>
         <PackageLicenseExpression>MIT</PackageLicenseExpression>