diff --git a/app/controllers/api/functions.php b/app/controllers/api/functions.php
index 5fd3519da4..feaabb0f47 100644
--- a/app/controllers/api/functions.php
+++ b/app/controllers/api/functions.php
@@ -1601,7 +1601,7 @@ App::post('/v1/functions/:functionId/executions')
     ->label('sdk.response.type', Response::CONTENT_TYPE_JSON)
     ->label('sdk.response.model', Response::MODEL_EXECUTION)
     ->param('functionId', '', new UID(), 'Function ID.')
-    ->param('body', '', new Text(20971520, 0), 'HTTP body of execution. Default value is empty string.', true)
+    ->param('body', '', new Text(10485760, 0), 'HTTP body of execution. Default value is empty string.', true)
     ->param('async', false, new Boolean(), 'Execute code in the background. Default value is false.', true)
     ->param('path', '/', new Text(2048), 'HTTP path of execution. Path can include query params. Default value is /', true)
     ->param('method', 'POST', new Whitelist(['GET', 'POST', 'PUT', 'PATCH', 'DELETE', 'OPTIONS'], true), 'HTTP method of execution. Default value is GET.', true)