diff --git a/Source/Cake.DotNetVersionDetector.Tests/Cake.DotNetVersionDetector.Tests.csproj b/Source/Cake.DotNetVersionDetector.Tests/Cake.DotNetVersionDetector.Tests.csproj
index 1dab394..089c41f 100644
--- a/Source/Cake.DotNetVersionDetector.Tests/Cake.DotNetVersionDetector.Tests.csproj
+++ b/Source/Cake.DotNetVersionDetector.Tests/Cake.DotNetVersionDetector.Tests.csproj
@@ -18,7 +18,7 @@
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       <PrivateAssets>all</PrivateAssets>
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-    <PackageReference Include="NSubstitute" Version="4.2.2" />
+    <PackageReference Include="NSubstitute" Version="4.4.0" />
     <PackageReference Include="xunit" Version="2.9.0" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.8.2" />
   </ItemGroup>