diff --git a/O21.CommandLine.Tests/O21.CommandLine.Tests.fsproj b/O21.CommandLine.Tests/O21.CommandLine.Tests.fsproj
index 2841dd4..13a731b 100644
--- a/O21.CommandLine.Tests/O21.CommandLine.Tests.fsproj
+++ b/O21.CommandLine.Tests/O21.CommandLine.Tests.fsproj
@@ -21,8 +21,8 @@ SPDX-License-Identifier: MIT
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-        <PackageReference Include="xunit" Version="2.5.3"/>
-        <PackageReference Include="xunit.runner.visualstudio" Version="2.5.3"/>
+        <PackageReference Include="xunit" Version="2.9.0"/>
+        <PackageReference Include="xunit.runner.visualstudio" Version="2.8.2"/>
     </ItemGroup>
 
     <ItemGroup>
diff --git a/O21.Tests/O21.Tests.fsproj b/O21.Tests/O21.Tests.fsproj
index f494bb5..1019a82 100644
--- a/O21.Tests/O21.Tests.fsproj
+++ b/O21.Tests/O21.Tests.fsproj
@@ -20,8 +20,8 @@ SPDX-License-Identifier: MIT
 
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-        <PackageReference Include="xunit" Version="2.4.2" />
-        <PackageReference Include="xunit.runner.visualstudio" Version="2.4.5">
+        <PackageReference Include="xunit" Version="2.9.0" />
+        <PackageReference Include="xunit.runner.visualstudio" Version="2.8.2">
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