diff --git a/source/Lite.StateMachine/Lite.StateMachine.csproj b/source/Lite.StateMachine/Lite.StateMachine.csproj
index a252d1e..7b67ff4 100644
--- a/source/Lite.StateMachine/Lite.StateMachine.csproj
+++ b/source/Lite.StateMachine/Lite.StateMachine.csproj
@@ -8,7 +8,7 @@
     <Title>Lite State Machine</Title>
     <Description>Flexible lightweight finite state machine (FSM) for .NET supporting shared context for passing parameters, composite (sub) states, command states, lazy-loading and thread safe. Cross-platform and optimized for speed for use in enterprise, robotic and even tiny applications.</Description>
 
-    <AssemblyVersion>2.2.0</AssemblyVersion>
+    <AssemblyVersion>2.2.1</AssemblyVersion>
     <FileVersion>$(AssemblyVersion)</FileVersion>
     <VersionPrefix>$(AssemblyVersion)</VersionPrefix>
     <VersionSuffix></VersionSuffix>
@@ -35,6 +35,8 @@
 
       * Proprety: IsContextPersistent - Auto-cleans Context parameters added by substates.
       * Renamed `RegisterCompositeChild(...)` to `RegisterSubComposite(...)` (breaking change)</PackageReleaseNotes>
+    <IncludeSymbols>true</IncludeSymbols>
+    <SymbolPackageFormat>snupkg</SymbolPackageFormat>
   </PropertyGroup>
 
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|AnyCPU'">