diff --git a/matemat/__init__.py b/matemat/__init__.py
index 489c7e1..4cedeb6 100644
--- a/matemat/__init__.py
+++ b/matemat/__init__.py
@@ -1,2 +1,2 @@
 
-__version__ = '0.4.1'
+__version__ = '0.4.2'
diff --git a/matemat/db/migrations.py b/matemat/db/migrations.py
index d9f8c64..286f805 100644
--- a/matemat/db/migrations.py
+++ b/matemat/db/migrations.py
@@ -309,3 +309,31 @@ def migrate_schema_8_to_9(c: sqlite3.Cursor):
         ON DELETE CASCADE ON UPDATE CASCADE
     )
     ''')
+
+
+def migrate_schema_9_to_10(c: sqlite3.Cursor):
+    c.execute('''
+    ALTER TABLE users RENAME TO users_old
+    ''')
+    c.execute('''
+    CREATE TABLE users (
+      user_id INTEGER PRIMARY KEY,
+      username TEXT UNIQUE NOT NULL COLLATE NOCASE,
+      email TEXT DEFAULT NULL,
+      password TEXT NOT NULL,
+      touchkey TEXT DEFAULT NULL,
+      is_admin INTEGER(1) NOT NULL DEFAULT 0,
+      is_member INTEGER(1) NOT NULL DEFAULT 1,
+      balance INTEGER(8) NOT NULL DEFAULT 0,
+      lastchange INTEGER(8) NOT NULL DEFAULT 0,
+      receipt_pref INTEGER(1) NOT NULL DEFAULT 0,
+      created INTEGER(8) NOT NULL DEFAULT 0,
+      logout_after_purchase INTEGER(1) DEFAULT 0
+    )
+    ''')
+    c.execute('''
+    INSERT INTO users SELECT * FROM users_old
+    ''')
+    c.execute('''
+    DROP TABLE users_old
+    ''')
diff --git a/matemat/db/schemas.py b/matemat/db/schemas.py
index 54d0980..5481fc8 100644
--- a/matemat/db/schemas.py
+++ b/matemat/db/schemas.py
@@ -669,3 +669,96 @@ SCHEMAS[9] = [
         ON DELETE CASCADE ON UPDATE CASCADE
     );
     ''']
+
+
+SCHEMAS[10] = [
+    '''
+    CREATE TABLE users (
+      user_id INTEGER PRIMARY KEY,
+      username TEXT UNIQUE NOT NULL COLLATE NOCASE,
+      email TEXT DEFAULT NULL,
+      password TEXT NOT NULL,
+      touchkey TEXT DEFAULT NULL,
+      is_admin INTEGER(1) NOT NULL DEFAULT 0,
+      is_member INTEGER(1) NOT NULL DEFAULT 1,
+      balance INTEGER(8) NOT NULL DEFAULT 0,
+      lastchange INTEGER(8) NOT NULL DEFAULT 0,
+      receipt_pref INTEGER(1) NOT NULL DEFAULT 0,
+      created INTEGER(8) NOT NULL DEFAULT 0,
+      logout_after_purchase INTEGER(1) DEFAULT 0
+    );
+    ''',
+    '''
+    CREATE TABLE products (
+      product_id INTEGER PRIMARY KEY,
+      name TEXT UNIQUE NOT NULL,
+      stock INTEGER(8) DEFAULT 0,
+      stockable INTEGER(1) DEFAULT 1,
+      price_member INTEGER(8) NOT NULL,
+      price_non_member INTEGER(8) NOT NULL,
+      custom_price INTEGER(1) DEFAULT 0,
+      ean TEXT UNIQUE DEFAULT NULL
+    );
+    ''',
+    '''
+    CREATE TABLE transactions (  -- "superclass" of the following 3 tables
+      ta_id INTEGER PRIMARY KEY,
+      user_id INTEGER DEFAULT NULL,
+      value INTEGER(8) NOT NULL,
+      old_balance INTEGER(8) NOT NULL,
+      date INTEGER(8) DEFAULT (STRFTIME('%s', 'now')),
+      FOREIGN KEY (user_id) REFERENCES users(user_id)
+        ON DELETE SET NULL ON UPDATE CASCADE
+    );
+    ''',
+    '''
+    CREATE TABLE consumptions (  -- transactions involving buying a product
+      ta_id INTEGER PRIMARY KEY,
+      product TEXT NOT NULL,
+      FOREIGN KEY (ta_id) REFERENCES transactions(ta_id)
+        ON DELETE CASCADE ON UPDATE CASCADE
+    );
+    ''',
+    '''
+    CREATE TABLE deposits (  -- transactions involving depositing cash
+      ta_id INTEGER PRIMARY KEY,
+      FOREIGN KEY (ta_id) REFERENCES transactions(ta_id)
+        ON DELETE CASCADE ON UPDATE CASCADE
+    );
+    ''',
+    '''
+    CREATE TABLE modifications (  -- transactions involving balance modification by an admin
+      ta_id INTEGER NOT NULL,
+      agent TEXT NOT NULL,
+      reason TEXT DEFAULT NULL,
+      PRIMARY KEY (ta_id),
+      FOREIGN KEY (ta_id) REFERENCES transactions(ta_id)
+        ON DELETE CASCADE ON UPDATE CASCADE
+    );
+    ''',
+    '''
+    CREATE TABLE receipts (  -- receipts sent to the users
+      receipt_id INTEGER PRIMARY KEY,
+      user_id INTEGER NOT NULL,
+      first_ta_id INTEGER DEFAULT NULL,
+      last_ta_id INTEGER DEFAULT NULL,
+      date INTEGER(8) DEFAULT (STRFTIME('%s', 'now')),
+      FOREIGN KEY (user_id) REFERENCES users(user_id)
+        ON DELETE CASCADE ON UPDATE CASCADE,
+      FOREIGN KEY (first_ta_id) REFERENCES transactions(ta_id)
+        ON DELETE SET NULL ON UPDATE CASCADE,
+      FOREIGN KEY (last_ta_id) REFERENCES transactions(ta_id)
+        ON DELETE SET NULL ON UPDATE CASCADE
+    );
+    ''',
+    '''
+    CREATE TABLE tokens (  -- authentication tokens such as barcodes
+      token_id INTEGER PRIMARY KEY,
+      user_id INTEGER NOT NULL,
+      token TEXT UNIQUE NOT NULL,
+      name TEXT UNIQUE NOT NULL,
+      date INTEGER(8) DEFAULT (STRFTIME('%s', 'now')),
+      FOREIGN KEY (user_id) REFERENCES users(user_id)
+        ON DELETE CASCADE ON UPDATE CASCADE
+    );
+    ''']
diff --git a/matemat/db/wrapper.py b/matemat/db/wrapper.py
index 2493b86..30fd6e5 100644
--- a/matemat/db/wrapper.py
+++ b/matemat/db/wrapper.py
@@ -40,7 +40,7 @@ class DatabaseTransaction(object):
 
 class DatabaseWrapper(object):
 
-    SCHEMA_VERSION = 9
+    SCHEMA_VERSION = 10
 
     def __init__(self, filename: str) -> None:
         self._filename: str = filename
@@ -78,8 +78,7 @@ class DatabaseWrapper(object):
 
     def _upgrade(self, from_version: int, to_version: int) -> None:
         with self.transaction() as c:
-            # Note to future s3lph: If there are further migrations, also consider upgrades like 1 -> 3
-            if from_version == 1 and to_version >= 2:
+            if from_version <= 1 and to_version >= 2:
                 migrate_schema_1_to_2(c)
             if from_version <= 2 and to_version >= 3:
                 migrate_schema_2_to_3(c)
@@ -97,6 +96,8 @@ class DatabaseWrapper(object):
                 migrate_schema_7_to_8(c)
             if from_version <= 8 and to_version >= 9:
                 migrate_schema_8_to_9(c)
+            if from_version <= 9 and to_version >= 10:
+                migrate_schema_9_to_10(c)
 
     def connect(self) -> None:
         if self.is_connected():