diff --git a/tests/KubernetesClient.Classic.Tests/KubernetesClient.Classic.Tests.csproj b/tests/KubernetesClient.Classic.Tests/KubernetesClient.Classic.Tests.csproj
index 169138b4c..7548bf2fc 100644
--- a/tests/KubernetesClient.Classic.Tests/KubernetesClient.Classic.Tests.csproj
+++ b/tests/KubernetesClient.Classic.Tests/KubernetesClient.Classic.Tests.csproj
@@ -11,7 +11,7 @@
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       <PackageReference Include="Microsoft.Extensions.Logging" Version="7.0.0" />
       <PackageReference Include="System.IO.Abstractions.TestingHelpers" Version="19.2.29" />
-      <PackageReference Include="System.Reactive" Version="5.0.0" />
+      <PackageReference Include="System.Reactive" Version="6.0.0" />
       <PackageReference Include="Nito.AsyncEx" Version="5.1.2" />
       <PackageReference Include="Portable.BouncyCastle" Version="1.9.0" />
   </ItemGroup>
diff --git a/tests/KubernetesClient.Tests/KubernetesClient.Tests.csproj b/tests/KubernetesClient.Tests/KubernetesClient.Tests.csproj
index 566e17591..aa1df5f07 100644
--- a/tests/KubernetesClient.Tests/KubernetesClient.Tests.csproj
+++ b/tests/KubernetesClient.Tests/KubernetesClient.Tests.csproj
@@ -10,7 +10,7 @@
       <PackageReference Include="FluentAssertions" Version="6.11.0" />
       <PackageReference Include="Microsoft.Extensions.Logging" Version="7.0.0" />
       <PackageReference Include="System.IO.Abstractions.TestingHelpers" Version="19.2.29" />
-      <PackageReference Include="System.Reactive" Version="5.0.0" />
+      <PackageReference Include="System.Reactive" Version="6.0.0" />
       <PackageReference Include="Nito.AsyncEx" Version="5.1.2" />
       <PackageReference Include="Portable.BouncyCastle" Version="1.9.0" />
   </ItemGroup>