diff --git a/appveyor.yml b/appveyor.yml
index d0a5e67174..29e310a182 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -26,10 +26,8 @@ install:
   - ps: >-
       if ($env:nodejs_version -eq "4") {
         npm install -g npm@3;
-      } elseif (
-          $env:nodejs_version -eq "8" -or
-          $env:nodejs_version -eq "10" -or
-          $env:nodejs_version -eq "12") {
+      }
+      if ($env:nodejs_version -in @("8", "10", "12")) {
         npm install -g npm@6.10.3;
       }
   - npm install