diff --git a/DataLoader/SequenceImageLoader.py b/DataLoader/SequenceImageLoader.py
index aa4aef6..18f37d8 100644
--- a/DataLoader/SequenceImageLoader.py
+++ b/DataLoader/SequenceImageLoader.py
@@ -4,8 +4,6 @@
 from tqdm import tqdm
 import logging
 
-from utils.tools import dict_update
-
 
 class SequenceImageLoader(object):
     default_config = {
diff --git a/Detectors/HandcraftDetector.py b/Detectors/HandcraftDetector.py
index 692111a..295174c 100644
--- a/Detectors/HandcraftDetector.py
+++ b/Detectors/HandcraftDetector.py
@@ -1,7 +1,7 @@
 import cv2
 import numpy as np
 import logging
-from utils.tools import dict_update, plot_keypoints
+from utils.tools import plot_keypoints
 
 
 class HandcraftDetector(object):
diff --git a/Matchers/FrameByFrameMatcher.py b/Matchers/FrameByFrameMatcher.py
index 6de5a35..50caf0f 100644
--- a/Matchers/FrameByFrameMatcher.py
+++ b/Matchers/FrameByFrameMatcher.py
@@ -1,7 +1,7 @@
 import numpy as np
 import cv2
 import logging
-from utils.tools import dict_update, plot_matches
+from utils.tools import plot_matches
 
 
 class FrameByFrameMatcher(object):