diff --git a/composer.json b/composer.json
index cba11f1f3caafee7aeb2bb51c32ea2bfc4c2a85a..057a9a29fb09ead563d53243ebf4499c038c17c7 100644
--- a/composer.json
+++ b/composer.json
@@ -24,7 +24,7 @@
   "require-dev": {
     "mikey179/vfsStream": "^1",
     "phpunit/phpunit": "^4.8.35 || ^6.5",
-    "drupal/migrate_plus": "^4"
+    "drupal/migrate_plus": "4.x-dev"
   },
   "config": {
     "preferred-install": "dist"