diff --git a/CHANGELOG.md b/CHANGELOG.md
index b6e7d847..25f78602 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -19,6 +19,7 @@ Please ADD ALL Changes to the UNRELEASED SECTION and not a specific release
 - Dependencies - Updated SonarAnalyzer.CSharp to 9.10.0.77988
 - Dependencies - Updated xunit.analyzers to 1.3.0
 - Dependencies - Updated Microsoft.NET.Test.Sdk to 17.7.2
+- Dependencies - Updated NSubstitute to 5.1.0
 ### Removed
 ### Deployment Changes
 
diff --git a/src/Credfeto.ChangeLog.Tests/Credfeto.ChangeLog.Tests.csproj b/src/Credfeto.ChangeLog.Tests/Credfeto.ChangeLog.Tests.csproj
index d657bfd9..a96e22e0 100644
--- a/src/Credfeto.ChangeLog.Tests/Credfeto.ChangeLog.Tests.csproj
+++ b/src/Credfeto.ChangeLog.Tests/Credfeto.ChangeLog.Tests.csproj
@@ -44,7 +44,7 @@
   <ItemGroup>
     <PackageReference Include="FunFair.Test.Common" Version="6.1.1.49" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.7.2" />
-    <PackageReference Include="NSubstitute" Version="5.0.0" />
+    <PackageReference Include="NSubstitute" Version="5.1.0" />
     <PackageReference Include="TeamCity.VSTest.TestAdapter" Version="1.0.36" />
     <PackageReference Include="xunit" Version="2.4.2" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.4.5" />