diff --git a/appveyor.yml b/appveyor.yml
index 32a67e18e..6a8d3ac91 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -41,11 +41,7 @@ test_script:
   - script\test.cmd
 
 after_test:
-  - IF [%APPVEYOR_REPO_BRANCH:~-9%]==[-releases] (
-      IF NOT EXIST C:\sqtemp MKDIR C:\sqtemp
-      SET SQUIRREL_TEMP=C:\sqtemp
-      script\build.cmd --existing-binaries --code-sign --create-windows-installer
-    )
+  - IF [%APPVEYOR_REPO_BRANCH:~-9%]==[-releases] ( script\create-installer.cmd )
 
 deploy: off
 artifacts:
diff --git a/script/create-installer.cmd b/script/create-installer.cmd
new file mode 100644
index 000000000..0354f0bac
--- /dev/null
+++ b/script/create-installer.cmd
@@ -0,0 +1,6 @@
+@ECHO OFF
+IF NOT EXIST C:\sqtemp MKDIR C:\sqtemp
+SET SQUIRREL_TEMP=C:\sqtemp
+del script\package-lock.json /q
+del apm\package-lock.json /q
+script\build.cmd --existing-binaries --code-sign --create-windows-installer