diff --git a/composer.json b/composer.json
index b9b7651299..dff1bc57be 100644
--- a/composer.json
+++ b/composer.json
@@ -6,7 +6,7 @@
     "license": "MIT",
     "require": {
         "php": ">=5.6",
-        "cakephp/cakephp": "3.8.*",
+        "cakephp/cakephp": "3.9.*",
         "cakephp/migrations": "^2.0.0",
         "cakephp/plugin-installer": "^1.0",
         "mobiledetect/mobiledetectlib": "2.*"