diff --git a/CHANGELOG.md b/CHANGELOG.md
index e994671f5..f07b931c7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,8 @@
 - Debug from .csproj and .sln [#5876](https://github.com/dotnet/vscode-csharp/issues/5876)
 
 # 2.94.x
+* Bump Razor to 10.0.0-preview.25503.1 (PR: [#8679](https://github.com/dotnet/vscode-csharp/pull/8679))
+  * Ensure RazorVSInternalCompletionParams is used for serialization of completion requests (PR: [#12271](https://github.com/dotnet/razor/pull/12271))
 * Fix update changelog script (PR: [#8671](https://github.com/dotnet/vscode-csharp/pull/8671))
 * Update RoslynCopilot url to 18.0.797-alpha (PR: [#8652](https://github.com/OmniSharp/omnisharp-vscode/pull/8652))
 * Fix GH action (PR: [#8662](https://github.com/OmniSharp/omnisharp-vscode/pull/8662))
diff --git a/package.json b/package.json
index c54eaf1a9..64aef8f92 100644
--- a/package.json
+++ b/package.json
@@ -42,7 +42,7 @@
   "defaults": {
     "roslyn": "5.1.0-1.25475.3",
     "omniSharp": "1.39.14",
-    "razor": "10.0.0-preview.25472.6",
+    "razor": "10.0.0-preview.25503.1",
     "razorOmnisharp": "7.0.0-preview.23363.1",
     "xamlTools": "18.0.11023.10"
   },