diff --git a/.github/workflows/windows.yml b/.github/workflows/windows.yml
index 230983083..003112599 100644
--- a/.github/workflows/windows.yml
+++ b/.github/workflows/windows.yml
@@ -34,7 +34,7 @@ jobs:
             src/package-lock.json
             src/bin/doc/package-lock.json
       -
-        run: npm install npm@6
+        run: npm install npm@6 -g
         name: Install old npm
       -
         name: Install all dependencies and symlink for ep_etherpad-lite