diff --git a/Demos/ASP.NET MVC/src/GroupDocs.Viewer.AspNetMvc.csproj b/Demos/ASP.NET MVC/src/GroupDocs.Viewer.AspNetMvc.csproj
index 978876eaa..d76e69be2 100644
--- a/Demos/ASP.NET MVC/src/GroupDocs.Viewer.AspNetMvc.csproj	
+++ b/Demos/ASP.NET MVC/src/GroupDocs.Viewer.AspNetMvc.csproj	
@@ -46,8 +46,8 @@
     <WarningLevel>4</WarningLevel>
   </PropertyGroup>
   <ItemGroup>
-    <Reference Include="AsyncKeyedLock, Version=6.2.0.0, Culture=neutral, PublicKeyToken=c6dde91429ba0f2f, processorArchitecture=MSIL">
-      <HintPath>packages\AsyncKeyedLock.6.2.0\lib\netstandard2.0\AsyncKeyedLock.dll</HintPath>
+    <Reference Include="AsyncKeyedLock, Version=6.2.1.0, Culture=neutral, PublicKeyToken=c6dde91429ba0f2f, processorArchitecture=MSIL">
+      <HintPath>packages\AsyncKeyedLock.6.2.1\lib\netstandard2.0\AsyncKeyedLock.dll</HintPath>
     </Reference>
     <Reference Include="GroupDocs.Viewer, Version=23.4.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56, processorArchitecture=MSIL">
       <HintPath>packages\GroupDocs.Viewer.23.4.0\lib\net40\GroupDocs.Viewer.dll</HintPath>
diff --git a/Demos/ASP.NET MVC/src/packages.config b/Demos/ASP.NET MVC/src/packages.config
index a32b8ca60..5930f095d 100644
--- a/Demos/ASP.NET MVC/src/packages.config	
+++ b/Demos/ASP.NET MVC/src/packages.config	
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="AsyncKeyedLock" version="6.2.0" targetFramework="net48" />
+  <package id="AsyncKeyedLock" version="6.2.1" targetFramework="net48" />
   <package id="GroupDocs.Viewer" version="23.4.0" targetFramework="net48" />
   <package id="Microsoft.AspNet.Cors" version="5.2.9" targetFramework="net48" />
   <package id="Microsoft.AspNet.Mvc" version="5.2.9" targetFramework="net48" />
diff --git a/Demos/ASP.NET Web Forms/src/GroupDocs.Viewer.AspNetWebForms.csproj b/Demos/ASP.NET Web Forms/src/GroupDocs.Viewer.AspNetWebForms.csproj
index 3d00f404c..006e88b24 100644
--- a/Demos/ASP.NET Web Forms/src/GroupDocs.Viewer.AspNetWebForms.csproj	
+++ b/Demos/ASP.NET Web Forms/src/GroupDocs.Viewer.AspNetWebForms.csproj	
@@ -45,8 +45,8 @@
     <WarningLevel>4</WarningLevel>
   </PropertyGroup>
   <ItemGroup>
-    <Reference Include="AsyncKeyedLock, Version=6.2.0.0, Culture=neutral, PublicKeyToken=c6dde91429ba0f2f, processorArchitecture=MSIL">
-      <HintPath>packages\AsyncKeyedLock.6.2.0\lib\netstandard2.0\AsyncKeyedLock.dll</HintPath>
+    <Reference Include="AsyncKeyedLock, Version=6.2.1.0, Culture=neutral, PublicKeyToken=c6dde91429ba0f2f, processorArchitecture=MSIL">
+      <HintPath>packages\AsyncKeyedLock.6.2.1\lib\netstandard2.0\AsyncKeyedLock.dll</HintPath>
     </Reference>
     <Reference Include="GroupDocs.Viewer, Version=23.4.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56, processorArchitecture=MSIL">
       <HintPath>packages\GroupDocs.Viewer.23.4.0\lib\net40\GroupDocs.Viewer.dll</HintPath>
diff --git a/Demos/ASP.NET Web Forms/src/packages.config b/Demos/ASP.NET Web Forms/src/packages.config
index 355531f00..da77b4ba1 100644
--- a/Demos/ASP.NET Web Forms/src/packages.config	
+++ b/Demos/ASP.NET Web Forms/src/packages.config	
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="AsyncKeyedLock" version="6.2.0" targetFramework="net48" />
+  <package id="AsyncKeyedLock" version="6.2.1" targetFramework="net48" />
   <package id="GroupDocs.Viewer" version="23.4.0" targetFramework="net48" />
   <package id="Microsoft.AspNet.Cors" version="5.2.9" targetFramework="net48" />
   <package id="Microsoft.AspNet.WebApi" version="5.2.9" targetFramework="net48" />