diff --git a/PathPlanning/HybridAStar/hybrid_a_star.py b/PathPlanning/HybridAStar/hybrid_a_star.py
index 41e21b8a..a7ac4784 100644
--- a/PathPlanning/HybridAStar/hybrid_a_star.py
+++ b/PathPlanning/HybridAStar/hybrid_a_star.py
@@ -14,7 +14,7 @@ import numpy as np
 import scipy.spatial
 import matplotlib.pyplot as plt
 # import reeds_shepp_path_planning as rs
-import heapq
+# import heapq
 
 EXTEND_AREA = 5.0  # [m]
 H_COST = 1.0