diff --git a/appveyor.yml b/appveyor.yml
index 8314b742..0a14ebb9 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -9,7 +9,7 @@ environment:
 install:
   - ps: Install-Product node $env:nodejs_version
   - set CI=true
-  - npm install -g npm@latest
+  - npm install -g npm@6.9.0
   - set PATH=%APPDATA%\npm;%PATH%
   - npm install
 matrix: