diff --git a/src/FSharp.Tests/FSharp.Tests.fsproj b/src/FSharp.Tests/FSharp.Tests.fsproj
index 261c7122..824cbf25 100644
--- a/src/FSharp.Tests/FSharp.Tests.fsproj
+++ b/src/FSharp.Tests/FSharp.Tests.fsproj
@@ -35,7 +35,7 @@
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         <PackageReference Include="NUnitLite" Version="3.13.2" />
-        <PackageReference Include="FsUnit" Version="4.0.4" />
+        <PackageReference Include="FsUnit" Version="4.0.5" />
         <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.10.0" />
         <PackageReference Include="Microsoft.NETFramework.ReferenceAssemblies" Version="1.0.2">
             <PrivateAssets>all</PrivateAssets>