diff --git a/dspace_statistics_api/app.py b/dspace_statistics_api/app.py
index e3feaba..1c8d8a8 100644
--- a/dspace_statistics_api/app.py
+++ b/dspace_statistics_api/app.py
@@ -1,6 +1,7 @@
-from .database import DatabaseManager
 import falcon
 
+from .database import DatabaseManager
+
 
 class RootResource:
     def on_get(self, req, resp):
diff --git a/dspace_statistics_api/database.py b/dspace_statistics_api/database.py
index 6ed7f01..07dc68a 100644
--- a/dspace_statistics_api/database.py
+++ b/dspace_statistics_api/database.py
@@ -1,12 +1,15 @@
-from .config import DATABASE_NAME
-from .config import DATABASE_USER
-from .config import DATABASE_PASS
-from .config import DATABASE_HOST
-from .config import DATABASE_PORT
 import falcon
 import psycopg2
 import psycopg2.extras
 
+from .config import (
+    DATABASE_HOST,
+    DATABASE_NAME,
+    DATABASE_PASS,
+    DATABASE_PORT,
+    DATABASE_USER,
+)
+
 
 class DatabaseManager:
     """Manage database connection."""
diff --git a/dspace_statistics_api/indexer.py b/dspace_statistics_api/indexer.py
index 4bed42d..f9628e9 100644
--- a/dspace_statistics_api/indexer.py
+++ b/dspace_statistics_api/indexer.py
@@ -29,11 +29,13 @@
 # See: https://solrclient.readthedocs.io/en/latest/SolrClient.html
 # See: https://wiki.duraspace.org/display/DSPACE/Solr
 
+import re
+
+import psycopg2.extras
+import requests
+
 from .config import SOLR_SERVER
 from .database import DatabaseManager
-import psycopg2.extras
-import re
-import requests
 
 
 # Enumerate the cores in Solr to determine if statistics have been sharded into