diff --git a/calculator/expression.py b/calculator/expression.py
index 1a27f0c5c27494a971e1479b48bd5c6da9f3ae59..ab3383c284b15e5b9e412e996157a9d053a18e34 100644
--- a/calculator/expression.py
+++ b/calculator/expression.py
@@ -1,8 +1,8 @@
 """
 Expression module defines the structure of an expression.
 """
-from calculator.operators import Operator
 from typing import Union
+from calculator.operators import Operator
 
 Term: type = int
 Token: type = Union[Operator, Term]
diff --git a/calculator/server.py b/calculator/server.py
index e0dc49ae37812a16bb365a45c95771af16f114b5..8e9344e6c07388e04f235096b073754c544390bd 100644
--- a/calculator/server.py
+++ b/calculator/server.py
@@ -1,7 +1,7 @@
-from calculator.calculator import Calculator
 from fastapi import FastAPI
 from fastapi.requests import Request
 from fastapi.templating import Jinja2Templates
+from calculator.calculator import Calculator
 
 app = FastAPI()
 templates = Jinja2Templates(directory="calculator/templates")