diff --git a/src/detectors/date/date.py b/src/detectors/date/date.py
index 9e938ac10ebd4663c020f2a70302067aa7787f5e..6ef4a200aab02b922753eea14623bd6a184d4abf 100644
--- a/src/detectors/date/date.py
+++ b/src/detectors/date/date.py
@@ -1,6 +1,6 @@
 from typing import Any, Dict, List, Tuple
 
-from src.detections import DateDetection, Detection
+from src.detections import DateDetection
 from src.detectors.interface import Detector
 
 from .en import detect_dates_en
diff --git a/src/detectors/ner/ner.py b/src/detectors/ner/ner.py
index 704a0abb0057095a47da833664eddde48d9ef712..bff8891751ba073d844c5098f525ec33daa67126 100644
--- a/src/detectors/ner/ner.py
+++ b/src/detectors/ner/ner.py
@@ -2,8 +2,7 @@ from typing import Dict, List, Tuple
 
 from src.annotations import (Annotation, MorphosyntacticAnnotation,
                              NerAnnotation)
-from src.detections import (DETECTION_CLASSES_MAP, Detection,
-                            MorphosyntacticInfoMixin)
+from src.detections import (DETECTION_CLASSES_MAP, MorphosyntacticInfoMixin)
 from src.detectors.interface import Detector
 
 
diff --git a/src/detectors/url/url.py b/src/detectors/url/url.py
index 9104f050c98e4ce6df402897a5107827275c0638..ac6996cdf700c8dea32d3bdb9eb79ee99d0af8a4 100644
--- a/src/detectors/url/url.py
+++ b/src/detectors/url/url.py
@@ -1,6 +1,5 @@
 from typing import Any, Dict, List, Tuple
 
-import regex as re
 
 from src.detections import UrlDetection
 from src.detectors.interface import Detector