diff --git a/src/Illuminate/Container/composer.json b/src/Illuminate/Container/composer.json
index 7dd58154bd7b..7347da14a73f 100755
--- a/src/Illuminate/Container/composer.json
+++ b/src/Illuminate/Container/composer.json
@@ -15,7 +15,8 @@
     ],
     "require": {
         "php": ">=7.0",
-        "illuminate/contracts": "5.5.*"
+        "illuminate/contracts": "5.5.*",
+        "psr/container": "~1.0"
     },
     "autoload": {
         "psr-4": {