diff --git a/composer.json b/composer.json
index a5f4ab5..d48ab73 100644
--- a/composer.json
+++ b/composer.json
@@ -19,8 +19,8 @@
     "require": {
         "php": ">=5.5",
         "guzzlehttp/guzzle": "~6.0",
-        "monolog/monolog": "~1.10",
         "pimple/pimple": "~3.0",
+        "psr/log": "^1.0",
         "ext-openssl": ">=0.0.0",
         "ext-json": "*",
         "ext-curl": "*"