diff --git a/case-1-lint/functions.py b/case-1-lint/functions.py
index f44d681c9fad59bdb249d46e15cbd55f49ead2dd..611137dbdb5c68dce41f7f08c9cd2df968e12717 100644
--- a/case-1-lint/functions.py
+++ b/case-1-lint/functions.py
@@ -1,4 +1,4 @@
-import math, os, time, json
+import math
 
 
 def f(x):