diff --git a/IDisposableAnalyzers.Test/IDisposableAnalyzers.Test.csproj b/IDisposableAnalyzers.Test/IDisposableAnalyzers.Test.csproj
index c66b9e85..32851d3a 100644
--- a/IDisposableAnalyzers.Test/IDisposableAnalyzers.Test.csproj
+++ b/IDisposableAnalyzers.Test/IDisposableAnalyzers.Test.csproj
@@ -45,6 +45,6 @@
     <PackageReference Include="NUnit3TestAdapter" Version="4.5.0" />
     <PackageReference Include="StyleCop.Analyzers" Version="1.2.0-beta.507" PrivateAssets="all" />
     <PackageReference Include="System.Reactive.Linq" Version="6.0.0" />
-    <PackageReference Include="reactiveui" Version="19.5.1" />
+    <PackageReference Include="reactiveui" Version="20.1.1" />
   </ItemGroup>
 </Project>
\ No newline at end of file
diff --git a/ValidCode/ValidCode.csproj b/ValidCode/ValidCode.csproj
index b9f0fd01..14f7fef0 100644
--- a/ValidCode/ValidCode.csproj
+++ b/ValidCode/ValidCode.csproj
@@ -27,6 +27,6 @@
     <PackageReference Include="Ninject" Version="3.3.6" />
     <PackageReference Include="NUnit" Version="3.14.0" />
     <PackageReference Include="System.Reactive.Linq" Version="6.0.0" />
-    <PackageReference Include="reactiveui" Version="19.5.1" />
+    <PackageReference Include="reactiveui" Version="20.1.1" />
   </ItemGroup>
 </Project>
\ No newline at end of file