diff --git a/Examples/Directory.Build.props b/Examples/Directory.Build.props
index a0a965eec..0e4816f01 100644
--- a/Examples/Directory.Build.props
+++ b/Examples/Directory.Build.props
@@ -36,7 +36,7 @@
 	</ItemGroup>
 
 	<ItemGroup>
-		<PackageReference Include="TestableIO.System.IO.Abstractions" Version="19.2.1" />
+		<PackageReference Include="TestableIO.System.IO.Abstractions" Version="19.2.4" />
 		<PackageReference Include="AutoFixture.Xunit2" Version="4.18.0" />
 		<PackageReference Include="FluentAssertions" Version="6.10.0" />
 		<PackageReference Include="Moq" Version="4.18.4" />
diff --git a/Source/Testably.Abstractions.Interface/Testably.Abstractions.Interface.csproj b/Source/Testably.Abstractions.Interface/Testably.Abstractions.Interface.csproj
index abeec977a..214b7e48a 100644
--- a/Source/Testably.Abstractions.Interface/Testably.Abstractions.Interface.csproj
+++ b/Source/Testably.Abstractions.Interface/Testably.Abstractions.Interface.csproj
@@ -18,7 +18,7 @@
 	</ItemGroup>
 
 	<ItemGroup>
-	  <PackageReference Include="TestableIO.System.IO.Abstractions" Version="19.2.1" />
+	  <PackageReference Include="TestableIO.System.IO.Abstractions" Version="19.2.4" />
 	</ItemGroup>
 
 </Project>
diff --git a/Source/Testably.Abstractions.Testing/FileSystem/FileStreamMock.cs b/Source/Testably.Abstractions.Testing/FileSystem/FileStreamMock.cs
index aaadcef2a..a21f2095b 100644
--- a/Source/Testably.Abstractions.Testing/FileSystem/FileStreamMock.cs
+++ b/Source/Testably.Abstractions.Testing/FileSystem/FileStreamMock.cs
@@ -61,7 +61,7 @@ private FileStreamMock(MemoryStream stream,
 		FileOptions options)
 		: base(
 			stream,
-			path == null ? null : fileSystem.Path.GetFullPath(path),
+			path == null ? "" : fileSystem.Path.GetFullPath(path),
 			(options & FileOptions.Asynchronous) != 0)
 	{
 		ThrowIfInvalidModeAccess(mode, access);