diff --git a/appveyor.yml b/appveyor.yml
index 6b8fb30..4f3e536 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -54,7 +54,7 @@ environment:
       PYTHON_ARCH:    "64"
 
 install:
-  - "%PIP% install --disable-pip-version-check --upgrade pip"
+  - "%PIP% install --disable-pip-version-check --user --upgrade pip"
   - "%PIP% install wheel twine"
 
 build_script: