diff --git a/config/runtime.exs b/config/runtime.exs
index e6d2c8a..99a756a 100644
--- a/config/runtime.exs
+++ b/config/runtime.exs
@@ -66,8 +66,8 @@ if config_env() == :prod do
     secret_key_base: secret_key_base
 
   config :nanoid,
-    size: 21,
-    alphabet: "_-0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
+    alphabet: "_-0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ",
+    size: 7
 
   # ## SSL Support
   #