diff --git a/README.md b/README.md
index f270d05..db29845 100644
--- a/README.md
+++ b/README.md
@@ -8,7 +8,7 @@
 
 ## Requirements
 
-* PHP 7.1 and above
+* PHP 7.3 and above
 * PHP's cURL support
 * PHP's JSON support
 
diff --git a/composer.json b/composer.json
index d434c44..a6ed4ad 100644
--- a/composer.json
+++ b/composer.json
@@ -12,7 +12,7 @@
         }
     ],
     "require": {
-        "php": ">=7.2.5",
+        "php": ">=7.3",
         "ext-curl": "*",
         "ext-json": "*",
         "jms/serializer": "3.*",