Update composer.json

Author: yannisc

composer.json

@@ -15,7 +15,7 @@
   "license": "BSD-2-Clause",
   "require": {
     "php": ">=7.1.3",
-    "psr/log": "^1.1",
+    "psr/log": "*",
     "symfony/polyfill-intl-idn": "^1.11",
     "symfony/cache": "^4.2",
     "symfony/polyfill-mbstring": "^1.11"