diff --git a/Directory.Build.props b/Directory.Build.props
index 79e228b2..b928ced6 100644
--- a/Directory.Build.props
+++ b/Directory.Build.props
@@ -7,7 +7,7 @@
 		<MicrosoftExtensionsHostingVersion>8.0.0</MicrosoftExtensionsHostingVersion>
 		<MicrosoftExtensionsConfigurationVersion>8.0.0</MicrosoftExtensionsConfigurationVersion>
 		<SystemCommandLineHostingVersion>0.3.0-alpha.21216.1</SystemCommandLineHostingVersion>
-    <TestableIOSystemIOAbstractionsWrappersVersion>19.2.69</TestableIOSystemIOAbstractionsWrappersVersion>
+    <TestableIOSystemIOAbstractionsWrappersVersion>21.0.2</TestableIOSystemIOAbstractionsWrappersVersion>
 		<MicrosoftCodeAnalysisCSharpVersion>4.9.2</MicrosoftCodeAnalysisCSharpVersion>
 		<MicrosoftCodeAnalysisAnalyzersVersion>3.3.4</MicrosoftCodeAnalysisAnalyzersVersion>
 		<NewtonsoftJsonVersion>13.0.3</NewtonsoftJsonVersion>