diff --git a/src/.config/dotnet-tools.json b/src/.config/dotnet-tools.json
index d32441db..a857ad3b 100644
--- a/src/.config/dotnet-tools.json
+++ b/src/.config/dotnet-tools.json
@@ -3,7 +3,7 @@
   "isRoot": true,
   "tools": {
     "docfx": {
-      "version": "2.78.3",
+      "version": "2.78.4",
       "commands": [
         "docfx"
       ],