diff --git a/eng/Versions.props b/eng/Versions.props
index 346444d0750..96ef4f2e968 100644
--- a/eng/Versions.props
+++ b/eng/Versions.props
@@ -13,7 +13,7 @@
     <PreReleaseVersionLabel>preview3</PreReleaseVersionLabel>
     <AssemblyVersion Condition="'$(IsReferenceAssemblyProject)' != 'true'">$(VersionPrefix).0</AssemblyVersion>
     <!-- Blazor WASM packages will not RTM with 3.1 -->
-    <BlazorWASMPreReleaseVersionLabel>preview3</BlazorWASMPreReleaseVersionLabel>
+    <BlazorWASMPreReleaseVersionLabel>preview4</BlazorWASMPreReleaseVersionLabel>
     <!--
       We do not support changing reference assemblies in a patch. This ignores
       the patch version number to ensure assembly version of ref assemblies stays constant