diff --git a/README.md b/README.md
index cd80965..9e2135f 100644
--- a/README.md
+++ b/README.md
@@ -14,7 +14,7 @@ Setup the database:
 
 `CREATE TABLE balance (id SERIAL UNIQUE,balance NUMERIC);`
 
-`CREATE TABLE transaction (id SERIAL UNIQUE,username VARCHAR(50),amount NUMERIC,timestamp TIMESTAMP);`
+`CREATE TABLE transaction (id NUMERIC,username VARCHAR(50),amount NUMERIC,timestamp TIMESTAMP);`
 
 Use script.