diff --git a/aqt/addons.py b/aqt/addons.py
index 7c217c6b3..4df7bbf3b 100644
--- a/aqt/addons.py
+++ b/aqt/addons.py
@@ -6,6 +6,8 @@ import json
 import re
 import zipfile
 from collections import defaultdict
+from typing import Callable, Dict, Any
+
 import markdown
 from send2trash import send2trash
 import jsonschema
@@ -355,8 +357,8 @@ and have been disabled: %(found)s") % dict(name=self.addonName(dir), found=addon
     # Add-on Config
     ######################################################################
 
-    _configButtonActions = {}
-    _configUpdatedActions = {}
+    _configButtonActions: Dict[str, Callable[[], None]] = {}
+    _configUpdatedActions: Dict[str, Callable[[Any], None]] = {}
 
     def addonConfigDefaults(self, dir):
         path = os.path.join(self.addonsFolder(dir), "config.json")
@@ -437,7 +439,7 @@ and have been disabled: %(found)s") % dict(name=self.addonName(dir), found=addon
     # Web Exports
     ######################################################################
 
-    _webExports = {}
+    _webExports: Dict[str, str] = {}
 
     def setWebExports(self, module, pattern):
         addon = self.addonFromModule(module)
diff --git a/aqt/profiles.py b/aqt/profiles.py
index 156017ca2..5fc82f19f 100644
--- a/aqt/profiles.py
+++ b/aqt/profiles.py
@@ -12,6 +12,8 @@ import shutil
 import io
 import locale
 
+from typing import Dict, Any
+
 from aqt.qt import *
 from anki.db import DB
 from anki.utils import isMac, isWin, intTime
@@ -35,7 +37,7 @@ metaConf = dict(
     disabledAddons=[],
 )
 
-profileConf = dict(
+profileConf: Dict[str,Any] = dict(
     # profile
     mainWindowGeom=None,
     mainWindowState=None,
diff --git a/aqt/qt.py b/aqt/qt.py
index 29bc7785f..2cba216e1 100644
--- a/aqt/qt.py
+++ b/aqt/qt.py
@@ -11,14 +11,15 @@ os.environ["LIBOVERLAY_SCROLLBAR"] = "0"
 
 from anki.utils import isWin, isMac
 
-from PyQt5.Qt import *
+from PyQt5.QtCore import *
+from PyQt5.QtWidgets import *
 # trigger explicit message in case of missing libraries
 # instead of silently failing to import
-from PyQt5.QtWebEngineWidgets import *
+from PyQt5.QtWebEngineWidgets import * # type: ignore
 try:
     from PyQt5 import sip
 except ImportError:
-    import sip
+    import sip # type: ignore
 
 from PyQt5.QtCore import pyqtRemoveInputHook # pylint: disable=no-name-in-module
 
diff --git a/aqt/sync.py b/aqt/sync.py
index 47322755a..6837e159c 100644
--- a/aqt/sync.py
+++ b/aqt/sync.py
@@ -44,7 +44,7 @@ class SyncManager(QObject):
             auth=auth, media=self.pm.profile['syncMedia'],
             hostNum=self.pm.profile.get("hostNum"),
         )
-        t.event.connect(self.onEvent)
+        t._event.connect(self.onEvent)
         self.label = _("Connecting...")
         prog = self.mw.progress.start(immediate=True, label=self.label)
         self.sentBytes = self.recvBytes = 0
@@ -287,7 +287,7 @@ Check Database, then sync again."""))
 
 class SyncThread(QThread):
 
-    event = pyqtSignal(str, str)
+    _event = pyqtSignal(str, str)
 
     def __init__(self, path, hkey, auth=None, media=True, hostNum=None):
         QThread.__init__(self)
@@ -460,6 +460,6 @@ class SyncThread(QThread):
             self.fireEvent("mediaSuccess")
 
     def fireEvent(self, cmd, arg=""):
-        self.event.emit(cmd, arg)
+        self._event.emit(cmd, arg)
 
 
diff --git a/aqt/webview.py b/aqt/webview.py
index ca3b2976e..13d7eec9a 100644
--- a/aqt/webview.py
+++ b/aqt/webview.py
@@ -13,7 +13,7 @@ from anki.lang import _
 # Page for debug messages
 ##########################################################################
 
-class AnkiWebPage(QWebEnginePage):
+class AnkiWebPage(QWebEnginePage): # type: ignore
 
     def __init__(self, onBridgeCmd):
         QWebEnginePage.__init__(self)
@@ -89,7 +89,7 @@ class AnkiWebPage(QWebEnginePage):
 # Main web view
 ##########################################################################
 
-class AnkiWebView(QWebEngineView):
+class AnkiWebView(QWebEngineView): # type: ignore
 
     def __init__(self, parent=None):
         QWebEngineView.__init__(self, parent=parent)
diff --git a/aqt/winpaths.py b/aqt/winpaths.py
index 389eb5098..6ef09d257 100644
--- a/aqt/winpaths.py
+++ b/aqt/winpaths.py
@@ -7,7 +7,7 @@ Depends only on ctypes, and retrieves path locations in Unicode
 """
 
 import ctypes
-from ctypes import windll, wintypes
+from ctypes import windll, wintypes # type: ignore
 
 __license__ = "MIT"
 __version__ = "0.2"
diff --git a/mypy.ini b/mypy.ini
index a7cebccdc..4fc0982b9 100644
--- a/mypy.ini
+++ b/mypy.ini
@@ -21,3 +21,13 @@ ignore_missing_imports = True
 ignore_missing_imports = True
 [mypy-bs4]
 ignore_missing_imports = True
+[mypy-pythoncom]
+ignore_missing_imports = True
+[mypy-win32com]
+ignore_missing_imports = True
+[mypy-send2trash]
+ignore_missing_imports = True
+[mypy-markdown]
+ignore_missing_imports = True
+[mypy-jsonschema.*]
+ignore_missing_imports = True
diff --git a/tools/typecheck.sh b/tools/typecheck.sh
index 2f55a7a61..8f9bda521 100755
--- a/tools/typecheck.sh
+++ b/tools/typecheck.sh
@@ -1,4 +1,4 @@
 #!/bin/bash
 
 TOOLS="$(cd "`dirname "$0"`"; pwd)"
-mypy $TOOLS/../anki
+mypy $TOOLS/../anki $TOOLS/../aqt