diff --git a/tests/heatmap_generation_test.py b/tests/heatmap_generation_test.py
index 471123d..e687e21 100644
--- a/tests/heatmap_generation_test.py
+++ b/tests/heatmap_generation_test.py
@@ -1,5 +1,4 @@
 import os
-import json
 import shutil
 import configparser
 import logging