diff --git a/appveyor.yml b/appveyor.yml
index 8da49a2f..d31b4036 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -47,7 +47,7 @@ install:
   # Upgrade to the latest version of pip to avoid it displaying warnings
   # about it being out of date.
   - "pip install --disable-pip-version-check --user --upgrade pip"
-  - "python setup.py develop"
+  - "pip install -e ."
   - "pipenv install --dev"
 
 test_script: