diff --git a/bucket/docfx.json b/bucket/docfx.json
index d2e3ae3fc2..ae2ca5272b 100644
--- a/bucket/docfx.json
+++ b/bucket/docfx.json
@@ -1,10 +1,10 @@
 {
-    "version": "2.65.3",
+    "version": "2.66.0",
     "description": "A documentation generation tool for API reference and Markdown files",
     "homepage": "https://dotnet.github.io/docfx/",
     "license": "MIT",
-    "url": "https://github.com/dotnet/docfx/releases/download/v2.65.3/docfx-win-x64-v2.65.3.zip",
-    "hash": "0eebaf7589a0370ac6a808a4690ee38e5c6769171960d8816ab1d4adc602d409",
+    "url": "https://github.com/dotnet/docfx/releases/download/v2.66.0/docfx-win-x64-v2.66.0.zip",
+    "hash": "841fd2fbf6096c155f51e193dd247af173cbcc181c30f1885f2afc8f45b7cd41",
     "bin": "docfx.exe",
     "checkver": {
         "github": "https://github.com/dotnet/docfx"