diff --git a/composer.json b/composer.json
index 14d744c..f0fe812 100644
--- a/composer.json
+++ b/composer.json
@@ -27,7 +27,7 @@
         "doctrine/common": "^2.2|^3",
         "doctrine/persistence": "^1.3.3|^2",
         "doctrine/dbal": "^2.13.1|^3.1",
-        "psr/log": "~1.0"
+        "psr/log": "^1|^2|^3"
     },
     "autoload": {
         "psr-4": { "Symfony\\Component\\Security\\Acl\\": "" },