diff --git a/.github/workflows/windows.yml b/.github/workflows/windows.yml
index 53fe33d07..230983083 100644
--- a/.github/workflows/windows.yml
+++ b/.github/workflows/windows.yml
@@ -33,6 +33,9 @@ jobs:
           cache-dependency-path: |
             src/package-lock.json
             src/bin/doc/package-lock.json
+      -
+        run: npm install npm@6
+        name: Install old npm
       -
         name: Install all dependencies and symlink for ep_etherpad-lite
         shell: msys2 {0}