python sqlite named parameter containing dash

I'm trying to insert a record into an sqlite database using named parameters in python (with the sqlite3 module). The values I want to insert are in a dictionary, but the dictionary keys might contain dashes, for example {'request-id': 100, 'year': '2015'}. I'm trying to execute the following:

import sqlite3
conn = sqlite3.connect('database.db')
cursor = conn.cursor()
cursor.execute('''CREATE TABLE IF NOT EXISTS requests (request_id text, date text)''')
query = '''INSERT INTO requests (request_id, year) VALUES (:request-id, :year)'''
cursor.execute(query, {'request-id': 100, 'year': '2015'})
conn.commit()
conn.close()

I get this error during the insert statement:

sqlite3.OperationalError: no such column: id

It seems like dashes are not well accepted as named parameters.

There are many workarounds for this, like creating a new dictionary where dashes in the keys are replaced by underscores, but I'd like to know if I could use some escaping technique or something else to avoid that.

Thanks for your help