My first code

[Flappo]

My first code I've ever made in python doesn't work and I don't know why. Please can you help me solve the issue.
Code:

age = 10;
if age < 9:
    print("Hey! ")
    print("Welcome to play with us")
else
    print("You're too old for this gang!")

Error code: 

Error:
>>> %Run test.py
  File "C:\Users\vikto\Desktop\test.py", line 5
    else
       ^
SyntaxError: invalid syntax


>>>