diff --git a/modules/platforms/dotnet/.config/dotnet-tools.json b/modules/platforms/dotnet/.config/dotnet-tools.json
index 45b1c6bc8f1c..6a8a8ae4c3a1 100644
--- a/modules/platforms/dotnet/.config/dotnet-tools.json
+++ b/modules/platforms/dotnet/.config/dotnet-tools.json
@@ -3,7 +3,7 @@
   "isRoot": true,
   "tools": {
     "docfx": {
-      "version": "2.78.4",
+      "version": "2.78.5",
       "commands": [
         "docfx"
       ]