diff --git a/misc/requirements/requirements-optional.txt b/misc/requirements/requirements-optional.txt
index 6e1e8b8ff..8f1e2498a 100644
--- a/misc/requirements/requirements-optional.txt
+++ b/misc/requirements/requirements-optional.txt
@@ -1,6 +1,6 @@
 # This file is automatically generated by scripts/dev/recompile_requirements.py
 
-colorama==0.4.0
+colorama==0.4.1
 cssutils==1.0.2
 hunter==2.1.0
 Pympler==0.6
diff --git a/qutebrowser/browser/browsertab.py b/qutebrowser/browser/browsertab.py
index 86cca09f1..1ced63fab 100644
--- a/qutebrowser/browser/browsertab.py
+++ b/qutebrowser/browser/browsertab.py
@@ -44,7 +44,8 @@ from qutebrowser.browser import mouse, hints, webelem
 from qutebrowser.qt import sip
 MYPY = False
 if MYPY:
-    # pylint: disable=unused-import
+    # pylint can't interpret type comments with Python 3.7
+    # pylint: disable=unused-import,useless-suppression
     from qutebrowser.browser.inspector import AbstractWebInspector
 
 
diff --git a/qutebrowser/browser/webkit/network/networkmanager.py b/qutebrowser/browser/webkit/network/networkmanager.py
index 0c3148ee4..2ca1ae0d9 100644
--- a/qutebrowser/browser/webkit/network/networkmanager.py
+++ b/qutebrowser/browser/webkit/network/networkmanager.py
@@ -29,7 +29,12 @@ from PyQt5.QtCore import (pyqtSlot, pyqtSignal, QCoreApplication, QUrl,
 from PyQt5.QtNetwork import QNetworkAccessManager, QNetworkReply, QSslSocket
 
 from qutebrowser.config import config
-from qutebrowser.mainwindow import prompt  # pylint: disable=unused-import
+
+MYPY = False
+if MYPY:
+    # pylint can't interpret type comments with Python 3.7
+    # pylint: disable=unused-import,useless-suppression
+    from qutebrowser.mainwindow import prompt
 from qutebrowser.utils import (message, log, usertypes, utils, objreg,
                                urlutils, debug)
 from qutebrowser.browser import shared
diff --git a/qutebrowser/misc/sessions.py b/qutebrowser/misc/sessions.py
index 5f50bf5d1..459011e0f 100644
--- a/qutebrowser/misc/sessions.py
+++ b/qutebrowser/misc/sessions.py
@@ -42,8 +42,6 @@ class Sentinel:
 
     """Sentinel value for default argument."""
 
-    pass
-
 
 default = Sentinel()