diff --git a/src/ReactiveUI.Validation/ReactiveUI.Validation.csproj b/src/ReactiveUI.Validation/ReactiveUI.Validation.csproj
index 0bd5acb0..fda1bb4b 100644
--- a/src/ReactiveUI.Validation/ReactiveUI.Validation.csproj
+++ b/src/ReactiveUI.Validation/ReactiveUI.Validation.csproj
@@ -10,6 +10,6 @@
   </ItemGroup>
 
   <ItemGroup Condition="$(TargetFramework.StartsWith('netstandard')) or $(TargetFramework.StartsWith('net4'))">
-    <PackageReference Include="System.Collections.Immutable" Version="9.0.11" />
+    <PackageReference Include="System.Collections.Immutable" Version="10.0.0" />
   </ItemGroup>
 </Project>