diff --git a/src/pricehist/cli.py b/src/pricehist/cli.py
index 9e8d7c8..53b7f92 100644
--- a/src/pricehist/cli.py
+++ b/src/pricehist/cli.py
@@ -2,8 +2,7 @@ import argparse
 import sys
 from datetime import datetime, timedelta
 
-from pricehist import sources
-from pricehist import outputs
+from pricehist import outputs, sources
 
 
 def cli(args=None):
diff --git a/src/pricehist/outputs/gnucashsql.py b/src/pricehist/outputs/gnucashsql.py
index d276410..450b22c 100644
--- a/src/pricehist/outputs/gnucashsql.py
+++ b/src/pricehist/outputs/gnucashsql.py
@@ -1,5 +1,5 @@
-from datetime import datetime
 import hashlib
+from datetime import datetime
 
 from pricehist import __version__
 
diff --git a/src/pricehist/sources/coindesk.py b/src/pricehist/sources/coindesk.py
index 151af5d..42ada10 100644
--- a/src/pricehist/sources/coindesk.py
+++ b/src/pricehist/sources/coindesk.py
@@ -1,5 +1,6 @@
-from decimal import Decimal
 import json
+from decimal import Decimal
+
 import requests
 
 from pricehist.price import Price
diff --git a/src/pricehist/sources/coinmarketcap.py b/src/pricehist/sources/coinmarketcap.py
index 514561b..cee4482 100644
--- a/src/pricehist/sources/coinmarketcap.py
+++ b/src/pricehist/sources/coinmarketcap.py
@@ -1,9 +1,10 @@
+import json
 from datetime import datetime, timedelta
 from decimal import Decimal
-import json
-import requests
 from xml.etree import ElementTree
 
+import requests
+
 from pricehist.price import Price
 
 
diff --git a/src/pricehist/sources/ecb.py b/src/pricehist/sources/ecb.py
index ee678e5..3fb0355 100644
--- a/src/pricehist/sources/ecb.py
+++ b/src/pricehist/sources/ecb.py
@@ -1,9 +1,10 @@
+import json
 from datetime import datetime, timedelta
 from decimal import Decimal
-import json
-import requests
 from xml.etree import ElementTree
 
+import requests
+
 from pricehist.price import Price