diff --git a/composer.json b/composer.json
index 045fa973e0ac9bb6a1f5e7f60b8bf231ebd645ca..bbd21c008516f16e4ae6446cbce07c4b63c0f844 100644
--- a/composer.json
+++ b/composer.json
@@ -74,7 +74,7 @@
         "drupal/security_review": "1.x-dev",
         "drupal/simple_sitemap": "^4.1",
         "drupal/sitemap": "^2.0",
-        "drupal/smart_date": "^3.1",
+        "drupal/smart_date": "^3.1||^4.0",
         "drupal/smtp": "^1.0",
         "drupal/stage_file_proxy": "^1.1||^2.0",
         "drupal/subpathauto": "^1.1",