diff --git a/CHANGELOG.md b/CHANGELOG.md
index 106e5bd..84161f1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,3 +2,6 @@
 
 All notable changes to `anthropic-sdk-php` will be documented in this file.
 
+## v.1.0 - 2023-10-01
+
+Version 1 release. Enjoy!
diff --git a/composer.json b/composer.json
index e26fa7d..61a49e3 100644
--- a/composer.json
+++ b/composer.json
@@ -44,7 +44,5 @@
             "pestphp/pest-plugin": true,
             "phpstan/extension-installer": true
         }
-    },
-    "minimum-stability": "dev",
-    "prefer-stable": true
+    }
 }