diff --git a/BuildScripts/NuGetPublish.bat b/BuildScripts/NuGetPublish.bat
index 45f2098c..535b330f 100644
--- a/BuildScripts/NuGetPublish.bat
+++ b/BuildScripts/NuGetPublish.bat
@@ -4,7 +4,7 @@ set PACKAGES=..\.dist
 set SOURCE=https://api.nuget.org/v3/index.json
 set /p APIKEY=<"..\..\ApiKey.txt"
 
-set PKGVER=3.2.0
+set PKGVER=3.2.1
 
 dotnet nuget push "%PACKAGES%\FastExpressionCompiler.%PKGVER%.nupkg" -k %APIKEY% -s %SOURCE%
 dotnet nuget push "%PACKAGES%\FastExpressionCompiler.src.%PKGVER%.nupkg" -k %APIKEY% -s %SOURCE%
diff --git a/README.md b/README.md
index 771425b4..5747d650 100644
--- a/README.md
+++ b/README.md
@@ -16,7 +16,7 @@
 [Apex.Serialization]: https://github.com/dbolin/Apex.Serialization
 [MapsterMapper]: https://github.com/MapsterMapper/Mapster 
 
-[![latest release notes](https://img.shields.io/badge/latest%20release%20notes-v3.2.0-blue)](https://github.com/dadhi/FastExpressionCompiler/releases/tag/v3.2.0)
+[![latest release notes](https://img.shields.io/badge/latest%20release%20notes-v3.2.1-blue)](https://github.com/dadhi/FastExpressionCompiler/releases/tag/v3.2.1)
 [![Windows build](https://ci.appveyor.com/api/projects/status/4iyhed69l3k0k37o/branch/master?svg=true)](https://ci.appveyor.com/project/MaksimVolkau/fastexpressioncompiler/branch/master)[![license](https://img.shields.io/github/license/dadhi/FastExpressionCompiler.svg)](http://opensource.org/licenses/MIT)  
 
 Targets .NET Standard 2.0, 2.1 and .NET 4.5
diff --git a/appveyor.yml b/appveyor.yml
index 38992de6..5e2bee63 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -3,7 +3,7 @@ image:
   - Ubuntu
   - macOS
 
-version: 3.2.0-b{build}
+version: 3.2.1-b{build}
 
 test: off
 
diff --git a/nuspecs/FastExpressionCompiler.Internal.src.nuspec b/nuspecs/FastExpressionCompiler.Internal.src.nuspec
index e6c6e687..2f881a1c 100644
--- a/nuspecs/FastExpressionCompiler.Internal.src.nuspec
+++ b/nuspecs/FastExpressionCompiler.Internal.src.nuspec
@@ -2,7 +2,7 @@
 <package xmlns="http://schemas.microsoft.com/packaging/2010/07/nuspec.xsd">
     <metadata minClientVersion="3.3.0">
         <id>FastExpressionCompiler.Internal.src</id>
-        <version>3.2.0</version>
+        <version>3.2.1</version>
         <authors>Maksim Volkau</authors>
         <copyright>Copyright © 2016-2021 Maksim Volkau</copyright>
         <projectUrl>https://github.com/dadhi/FastExpressionCompiler</projectUrl>
@@ -12,6 +12,10 @@
         <description>FastExpressionCompiler is 10-40x times faster than Expression.Compile()</description>
         <tags>Performance;Expression;ExpressionTree;Compile;DynamicMethod;IL;ILEmit;DryIoc;ExpressionToCodeLib</tags>
         <releaseNotes><![CDATA[
+## v3.2.1 Bug-fix release
+
+- fixed: #307 Switch with fall through throws "System.InvalidProgramException: 'Common Language Runtime detected an invalid program.'"
+
 ## v3.2.0 Bug-fix and optimization release
 
 - fixed: #305 CompileFast generates incorrect code with arrays and printing
diff --git a/nuspecs/FastExpressionCompiler.LightExpression.Internal.src.nuspec b/nuspecs/FastExpressionCompiler.LightExpression.Internal.src.nuspec
index 80ae598a..541bee0f 100644
--- a/nuspecs/FastExpressionCompiler.LightExpression.Internal.src.nuspec
+++ b/nuspecs/FastExpressionCompiler.LightExpression.Internal.src.nuspec
@@ -2,7 +2,7 @@
 <package xmlns="http://schemas.microsoft.com/packaging/2010/07/nuspec.xsd">
     <metadata minClientVersion="3.3.0">
         <id>FastExpressionCompiler.LightExpression.Internal.src</id>
-        <version>3.2.0</version>
+        <version>3.2.1</version>
         <authors>Maksim Volkau</authors>
         <copyright>Copyright © 2016-2021 Maksim Volkau</copyright>
         <projectUrl>https://github.com/dadhi/FastExpressionCompiler</projectUrl>
@@ -12,6 +12,10 @@
         <description>FastExpressionCompiler is 10-40x times faster than Expression.Compile()</description>
         <tags>Performance;Expression;ExpressionTree;Compile;DynamicMethod;IL;ILEmit;DryIoc;ExpressionToCodeLib</tags>
         <releaseNotes><![CDATA[
+## v3.2.1 Bug-fix release
+
+- fixed: #307 Switch with fall through throws "System.InvalidProgramException: 'Common Language Runtime detected an invalid program.'"
+
 ## v3.2.0 Bug-fix and optimization release
 
 - fixed: #305 CompileFast generates incorrect code with arrays and printing
diff --git a/nuspecs/FastExpressionCompiler.LightExpression.src.nuspec b/nuspecs/FastExpressionCompiler.LightExpression.src.nuspec
index 8fee5b9d..7a842bec 100644
--- a/nuspecs/FastExpressionCompiler.LightExpression.src.nuspec
+++ b/nuspecs/FastExpressionCompiler.LightExpression.src.nuspec
@@ -2,7 +2,7 @@
 <package xmlns="http://schemas.microsoft.com/packaging/2010/07/nuspec.xsd">
     <metadata minClientVersion="3.3.0">
         <id>FastExpressionCompiler.LightExpression.src</id>
-        <version>3.2.0</version>
+        <version>3.2.1</version>
         <authors>Maksim Volkau</authors>
         <copyright>Copyright © 2016-2021 Maksim Volkau</copyright>
         <projectUrl>https://github.com/dadhi/FastExpressionCompiler</projectUrl>
@@ -12,6 +12,10 @@
         <description>FastExpressionCompiler is 10-40x times faster than Expression.Compile()</description>
         <tags>Performance;Expression;ExpressionTree;Compile;DynamicMethod;IL;ILEmit;DryIoc;ExpressionToCodeLib</tags>
         <releaseNotes><![CDATA[
+## v3.2.1 Bug-fix release
+
+- fixed: #307 Switch with fall through throws "System.InvalidProgramException: 'Common Language Runtime detected an invalid program.'"
+
 ## v3.2.0 Bug-fix and optimization release
 
 - fixed: #305 CompileFast generates incorrect code with arrays and printing
diff --git a/nuspecs/FastExpressionCompiler.src.nuspec b/nuspecs/FastExpressionCompiler.src.nuspec
index 130f8c30..284eb1ae 100644
--- a/nuspecs/FastExpressionCompiler.src.nuspec
+++ b/nuspecs/FastExpressionCompiler.src.nuspec
@@ -2,7 +2,7 @@
 <package xmlns="http://schemas.microsoft.com/packaging/2010/07/nuspec.xsd">
     <metadata minClientVersion="3.3.0">
         <id>FastExpressionCompiler.src</id>
-        <version>3.2.0</version>
+        <version>3.2.1</version>
         <authors>Maksim Volkau</authors>
         <copyright>Copyright © 2016-2021 Maksim Volkau</copyright>
         <projectUrl>https://github.com/dadhi/FastExpressionCompiler</projectUrl>
@@ -12,6 +12,10 @@
         <tags>Performance;Expression;ExpressionTree;Compile;DynamicMethod;IL;ILEmit;DryIoc;ExpressionToCodeLib</tags>
         <icon>logo.png</icon>
         <releaseNotes><![CDATA[
+## v3.2.1 Bug-fix release
+
+- fixed: #307 Switch with fall through throws "System.InvalidProgramException: 'Common Language Runtime detected an invalid program.'"
+
 ## v3.2.0 Bug-fix and optimization release
 
 - fixed: #305 CompileFast generates incorrect code with arrays and printing
diff --git a/src/FastExpressionCompiler.LightExpression/FastExpressionCompiler.LightExpression.csproj b/src/FastExpressionCompiler.LightExpression/FastExpressionCompiler.LightExpression.csproj
index c993e1c0..01c97add 100644
--- a/src/FastExpressionCompiler.LightExpression/FastExpressionCompiler.LightExpression.csproj
+++ b/src/FastExpressionCompiler.LightExpression/FastExpressionCompiler.LightExpression.csproj
@@ -2,7 +2,7 @@
     <PropertyGroup>
         <TargetFrameworks>net45;netstandard2.0;netstandard2.1</TargetFrameworks>
 
-        <VersionPrefix>3.2.0</VersionPrefix>
+        <VersionPrefix>3.2.1</VersionPrefix>
         <VersionSuffix></VersionSuffix>
 
         <Product>FastExpressionCompiler.LightExpression</Product>
@@ -12,6 +12,10 @@
         <Description>FastExpressionCompiler for LightExpression is 10-40x times faster than Expression.Compile()</Description>
         <PackageTags>Performance;Expression;ExpressionTree;Compile;DynamicMethod;IL;ILEmit;DryIoc;ExpressionToCodeLib</PackageTags>
         <PackageReleaseNotes><![CDATA[
+## v3.2.1 Bug-fix release
+
+- fixed: #307 Switch with fall through throws "System.InvalidProgramException: 'Common Language Runtime detected an invalid program.'"
+
 ## v3.2.0 Bug-fix and optimization release
 
 - fixed: #305 CompileFast generates incorrect code with arrays and printing
diff --git a/src/FastExpressionCompiler/FastExpressionCompiler.csproj b/src/FastExpressionCompiler/FastExpressionCompiler.csproj
index 4035b8b2..98da441c 100644
--- a/src/FastExpressionCompiler/FastExpressionCompiler.csproj
+++ b/src/FastExpressionCompiler/FastExpressionCompiler.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
     <PropertyGroup>
         <TargetFrameworks>net45;netstandard2.0;netstandard2.1</TargetFrameworks>
-        <VersionPrefix>3.2.0</VersionPrefix>
+        <VersionPrefix>3.2.1</VersionPrefix>
         <VersionSuffix></VersionSuffix>
         <Product>FastExpressionCompiler</Product>
         <PackageId>$(Product)</PackageId>
@@ -9,6 +9,10 @@
         <Description>FastExpressionCompiler is 10-40x times faster than Expression.Compile()</Description>
         <PackageTags>Performance;Expression;ExpressionTree;Compile;DynamicMethod;IL;ILEmit;DryIoc;ExpressionToCodeLib</PackageTags>
         <PackageReleaseNotes><![CDATA[
+## v3.2.1 Bug-fix release
+
+- fixed: #307 Switch with fall through throws "System.InvalidProgramException: 'Common Language Runtime detected an invalid program.'"
+
 ## v3.2.0 Bug-fix and optimization release
 
 - fixed: #305 CompileFast generates incorrect code with arrays and printing