diff --git a/composer.json b/composer.json
index 335fe27..904acac 100644
--- a/composer.json
+++ b/composer.json
@@ -16,7 +16,7 @@
     "php": "^7.1.3",
     "ext-xmlreader": "*",
     "maxakawizard/json-collection-parser": "^1.1",
-    "tightenco/collect": "^5|^6|^7"
+    "tightenco/collect": "^5.0|^6.0|^7.0"
   },
 
   "require-dev": {