diff --git a/appveyor.yml b/appveyor.yml
index a4a0cedc66..845751ef07 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -17,7 +17,11 @@ build:
   publish_nuget: true
 after_build:
   - ps: dotnet tool restore
-  - ps: dotnet format --dry-run --check
+
+  # Temporarily disabled until the tool is upgraded to 5.0.
+  # The version specified in .config/dotnet-tools.json (3.1.37601) won't run on .NET hosts >=5.0.7.
+  # - ps: dotnet format --dry-run --check
+
   - ps: .\InspectCode.ps1
 test:
   assemblies: