diff --git a/composer.json b/composer.json
index c04ca84..c8e69f8 100644
--- a/composer.json
+++ b/composer.json
@@ -6,7 +6,7 @@
     "minimum-stability": "dev",
     "prefer-stable": true,
     "require": {
-        "drupal/cas": "~1.3",
+        "drupal/cas": "dev-1.x",
         "openeuropa/drupal-core-require": "^8.6",
         "php": "^7.1"
     },