diff --git a/Examples/SystemCommandsBot/SystemCommandsBot.csproj b/Examples/SystemCommandsBot/SystemCommandsBot.csproj
index 7423d4a..f14db93 100644
--- a/Examples/SystemCommandsBot/SystemCommandsBot.csproj
+++ b/Examples/SystemCommandsBot/SystemCommandsBot.csproj
@@ -11,4 +11,4 @@
         <ProjectReference Include="..\..\TelegramBotBase\TelegramBotBase.csproj"/>
     </ItemGroup>
 
-</Project>
+</Project>
\ No newline at end of file
diff --git a/TelegramBotBase.Test/packages.config b/TelegramBotBase.Test/packages.config
new file mode 100644
index 0000000..5f28270
--- /dev/null
+++ b/TelegramBotBase.Test/packages.config
@@ -0,0 +1 @@
+
\ No newline at end of file
diff --git a/TelegramBotBase/Form/CallbackData.cs b/TelegramBotBase/Form/CallbackData.cs
index d1cf35c..8385551 100644
--- a/TelegramBotBase/Form/CallbackData.cs
+++ b/TelegramBotBase/Form/CallbackData.cs
@@ -64,4 +64,6 @@ public class CallbackData
 
         return null;
     }
-}
\ No newline at end of file
+
+    public static implicit operator string(CallbackData callbackData) => callbackData.Serialize();
+}
diff --git a/TelegramBotBase/TelegramBotBase.nuspec b/TelegramBotBase/TelegramBotBase.nuspec
index 12c8077..7e14769 100644
--- a/TelegramBotBase/TelegramBotBase.nuspec
+++ b/TelegramBotBase/TelegramBotBase.nuspec
@@ -1,29 +1,27 @@
 <?xml version="1.0" encoding="utf-8"?>
 <package xmlns="http://schemas.microsoft.com/packaging/2013/05/nuspec.xsd">
-    <metadata>
-        <id>TelegramBotBase</id>
-        <version>2.1.0</version>
-        <authors>TelegramBotBase</authors>
-        <owners>TelegramBotBase</owners>
-        <requireLicenseAcceptance>false</requireLicenseAcceptance>
-        <license type="expression">MIT</license>
-        <projectUrl>https://github.com/MajMcCloud/TelegramBotFramework</projectUrl>
-        <description>Package Description</description>
-        <releaseNotes>- moving from .Net Framework 4.7.2 to .Net Standard 2.1 for the Library and .Net Core 3.0 for the
-            test project!
-        </releaseNotes>
-        <repository url="https://github.com/MajMcCloud/TelegramBotFramework"/>
-        <dependencies>
-            <group targetFramework=".NETFramework4.6.1">
-                <dependency id="Newtonsoft.Json" version="12.0.2" exclude="Build,Analyzers"/>
-                <dependency id="System.Drawing.Common" version="4.6.0" exclude="Build,Analyzers"/>
-                <dependency id="Telegram.Bot" version="15.0.0" exclude="Build,Analyzers"/>
-            </group>
-            <group targetFramework=".NETStandard2.0">
-                <dependency id="Newtonsoft.Json" version="12.0.2" exclude="Build,Analyzers"/>
-                <dependency id="System.Drawing.Common" version="4.6.0" exclude="Build,Analyzers"/>
-                <dependency id="Telegram.Bot" version="15.0.0" exclude="Build,Analyzers"/>
-            </group>
-        </dependencies>
-    </metadata>
+  <metadata>
+    <id>TelegramBotBase</id>
+    <version>2.1.0</version>
+    <authors>TelegramBotBase</authors>
+    <owners>TelegramBotBase</owners>
+    <requireLicenseAcceptance>false</requireLicenseAcceptance>
+    <license type="expression">MIT</license>
+    <projectUrl>https://github.com/MajMcCloud/TelegramBotFramework</projectUrl>
+    <description>Package Description</description>
+    <releaseNotes>- moving from .Net Framework 4.7.2 to  .Net Standard 2.1 for the Library and .Net Core 3.0 for the test project!</releaseNotes>
+    <repository url="https://github.com/MajMcCloud/TelegramBotFramework" />
+    <dependencies>
+      <group targetFramework=".NETFramework4.6.1">
+        <dependency id="Newtonsoft.Json" version="13.0.1" exclude="Build,Analyzers" />
+        <dependency id="System.Drawing.Common" version="4.6.0" exclude="Build,Analyzers" />
+        <dependency id="Telegram.Bot" version="15.0.0" exclude="Build,Analyzers" />
+      </group>
+      <group targetFramework=".NETStandard2.0">
+        <dependency id="Newtonsoft.Json" version="13.0.1" exclude="Build,Analyzers" />
+        <dependency id="System.Drawing.Common" version="4.6.0" exclude="Build,Analyzers" />
+        <dependency id="Telegram.Bot" version="15.0.0" exclude="Build,Analyzers" />
+      </group>
+    </dependencies>
+  </metadata>
 </package>