diff --git a/database/build_taxids_index.py b/database/build_taxids_index.py
index a1e06c0..ed1109c 100644
--- a/database/build_taxids_index.py
+++ b/database/build_taxids_index.py
@@ -1,5 +1,4 @@
 import json
-import time
 import argparse
 
 def run(args):
diff --git a/src/DatabaseReduction.py b/src/DatabaseReduction.py
index 7184ac3..464d993 100644
--- a/src/DatabaseReduction.py
+++ b/src/DatabaseReduction.py
@@ -1,9 +1,7 @@
 import argparse
-import sys
 import subprocess
 import logging
 import json
-from pathlib import Path
 
 CLEAN_THRESHOLD = {'less-strict':0.9,'strict':0.99, 'very-strict':0.999} 
 MIN_CONTIG_LEN = 1000
diff --git a/src/ReadClassification.py b/src/ReadClassification.py
index 8b3fe60..2fdc276 100644
--- a/src/ReadClassification.py
+++ b/src/ReadClassification.py
@@ -1,7 +1,6 @@
 import argparse
 import logging
 import json
-from pathlib import Path
 import random
 import numpy as np
 from sklearn.cluster import DBSCAN