diff --git a/composer.json b/composer.json
index 6820022..b54247e 100644
--- a/composer.json
+++ b/composer.json
@@ -9,7 +9,7 @@
   ],
   "require": {
     "php": "~7.1.3|~7.2.0",
-    "composer/composer": "~1.6.0",
+    "composer/composer": "^1.6",
     "symfony/console": "~4.0.0"
   },
   "require-dev": {