diff --git a/composer.json b/composer.json
index de6e3d62..c3357a22 100644
--- a/composer.json
+++ b/composer.json
@@ -5,7 +5,7 @@
     "license": "MIT",
     "type": "project",
     "require": {
-        "php": ">=7.0.0",
+        "php": ">=7.1.3",
         "fideloper/proxy": "^4.0",
         "graham-campbell/github": "^7.5",
         "guzzlehttp/guzzle": "^6.3",