diff --git a/Source/LocalNetAppChat/LocalNetAppChat.Bot.Tests/LocalNetAppChat.Bot.Tests.csproj b/Source/LocalNetAppChat/LocalNetAppChat.Bot.Tests/LocalNetAppChat.Bot.Tests.csproj
index 84858f0..35d9399 100644
--- a/Source/LocalNetAppChat/LocalNetAppChat.Bot.Tests/LocalNetAppChat.Bot.Tests.csproj
+++ b/Source/LocalNetAppChat/LocalNetAppChat.Bot.Tests/LocalNetAppChat.Bot.Tests.csproj
@@ -17,7 +17,7 @@
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="NSubstitute" Version="5.1.0" />
+    <PackageReference Include="NSubstitute" Version="5.3.0" />
   </ItemGroup>
 
   <ItemGroup>