diff --git a/cmd/migrate-db-0.2/README.md b/cmd/migrate-db-0.2/README.md
deleted file mode 100644
index e436a08..0000000
--- a/cmd/migrate-db-0.2/README.md
+++ /dev/null
@@ -1,9 +0,0 @@
-# migrate-db-0.2
-
-Simple utility for migration of maddy 0.2 imapsql to
-0.3 format. This is not done automatically since this is
-a destructive migration and removes password field.
-
-See Tutorials / Upgrading from older maddy versions.
-
-**This utility will be removed on 0.4 release.**
diff --git a/cmd/migrate-db-0.2/migrate.go b/cmd/migrate-db-0.2/migrate.go
deleted file mode 100644
index f8cc69d..0000000
--- a/cmd/migrate-db-0.2/migrate.go
+++ /dev/null
@@ -1,104 +0,0 @@
-package main
-
-import (
-	"database/sql"
-	"fmt"
-	"os"
-	"time"
-
-	_ "github.com/mattn/go-sqlite3"
-)
-
-func main() {
-	if len(os.Args) != 2 {
-		fmt.Printf("Usage: %s <DB file path>\n", os.Args[0])
-		return
-	}
-
-	fmt.Println("Seriously, take a DB backup now. I will give you 5 seconds to abort.")
-	time.Sleep(5 * time.Second)
-
-	/* In go-imap-sql used by maddy 0.2:
-	            id BIGSERIAL NOT NULL PRIMARY KEY AUTOINCREMENT,
-				username VARCHAR(255) NOT NULL UNIQUE,
-				msgsizelimit INTEGER DEFAULT NULL,
-				password VARCHAR(255) DEFAULT NULL,
-				password_salt VARCHAR(255) DEFAULT NULL,
-	            inboxId BIGINT DEFAULT 0
-	*/
-	/* In go-imap-sql used by maddy 0.3:
-				id BIGSERIAL NOT NULL PRIMARY KEY AUTOINCREMENT,
-				username VARCHAR(255) NOT NULL UNIQUE,
-				msgsizelimit INTEGER DEFAULT NULL,
-	            inboxId BIGINT DEFAULT 0
-	*/
-
-	db, err := sql.Open("sqlite3", os.Args[1])
-	if err != nil {
-		fmt.Println(err)
-		return
-	}
-	defer db.Close()
-	if err := db.Ping(); err != nil {
-		fmt.Println(err)
-		return
-	}
-	db.SetMaxOpenConns(1)
-
-	fmt.Println("Disabling foreign keys...")
-	db.Exec("PRAGMA foreign_keys=OFF")
-
-	fmt.Println("Taking exclusive DB lock...")
-	db.Exec("PRAGMA locking_mode=EXCLUSIVE")
-	tx, err := db.Begin()
-	if err != nil {
-		fmt.Println("Tx begin:", err)
-		return
-	}
-	defer tx.Rollback()
-
-	fmt.Println("Creating new users table...")
-	_, err = tx.Exec(`
-        CREATE TABLE __new_users (
-            id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
-			username VARCHAR(255) NOT NULL UNIQUE,
-			msgsizelimit INTEGER DEFAULT NULL,
-            inboxId BIGINT DEFAULT 0
-        )`)
-	if err != nil {
-		fmt.Println("Create new table:", err)
-		return
-	}
-
-	fmt.Println("Moving data from old table...")
-	_, err = tx.Exec(`
-        INSERT INTO __new_users
-        SELECT id, username, msgsizelimit, inboxId
-        FROM users`)
-	if err != nil {
-		fmt.Println("Data move:", err)
-		return
-	}
-
-	fmt.Println("Removing old table...")
-	_, err = tx.Exec(`DROP TABLE users`)
-	if err != nil {
-		fmt.Println("Table drop:", err)
-		return
-	}
-
-	fmt.Println("Renaming new table to the normal name...")
-	_, err = tx.Exec(`ALTER TABLE __new_users RENAME TO users`)
-	if err != nil {
-		fmt.Println("Table rename:", err)
-		return
-	}
-
-	fmt.Println("Completing transaction...")
-	if err := tx.Commit(); err != nil {
-		fmt.Println("Tx commit:", err)
-		return
-	}
-
-	fmt.Println("Done! Now go back and run maddyctl to readd passwords to DB.")
-}
diff --git a/docs/tutorials/upgrading.md b/docs/tutorials/upgrading.md
index 9f94cd5..2633639 100644
--- a/docs/tutorials/upgrading.md
+++ b/docs/tutorials/upgrading.md
@@ -40,7 +40,9 @@ cp /var/lib/maddy/imapsql.db* backup/
 
 ```
 git clone https://github/foxcpp/maddy.git
-cd maddy/cmd/migrate-db-0.2
+cd maddy/
+git checkout v0.3.0
+cd cmd/migrate-db-0.2
 go build
 ```