diff --git a/slixmpp/basexmpp.py b/slixmpp/basexmpp.py
index b1115292..a74db5ac 100644
--- a/slixmpp/basexmpp.py
+++ b/slixmpp/basexmpp.py
@@ -264,9 +264,9 @@ class BaseXMPP(XMLStream):
         if not pconfig:
             pconfig = self.plugin_config.get(plugin, {})
 
-        if not self.plugin.registered(plugin):
+        if not self.plugin.registered(plugin):  # type: ignore
             load_plugin(plugin, module)
-        self.plugin.enable(plugin, pconfig)
+        self.plugin.enable(plugin, pconfig)  # type: ignore
 
     def register_plugins(self):
         """Register and initialize all built-in plugins.
diff --git a/slixmpp/clientxmpp.py b/slixmpp/clientxmpp.py
index 6bfb34c8..f0a7d83e 100644
--- a/slixmpp/clientxmpp.py
+++ b/slixmpp/clientxmpp.py
@@ -133,8 +133,9 @@ class ClientXMPP(BaseXMPP):
     def password(self, value: str) -> None:
         self.credentials['password'] = value
 
-    def connect(self, address: Optional[Tuple[str, int]] = None, use_ssl: bool = False,
-            force_starttls: bool = True, disable_starttls: bool = False) -> None:
+    def connect(self, address: Optional[Tuple[str, int]] = None,  # type: ignore
+                use_ssl: bool = False, force_starttls: bool = True,
+                disable_starttls: bool = False) -> None:
         """Connect to the XMPP server.
 
         When no address is given, a SRV lookup for the server will
diff --git a/slixmpp/test/integration.py b/slixmpp/test/integration.py
index e8093107..fe33fa57 100644
--- a/slixmpp/test/integration.py
+++ b/slixmpp/test/integration.py
@@ -11,7 +11,7 @@ except ImportError:
     # Python < 3.8
     # just to make sure the imports do not break, but
     # not usable.
-    from unittest import TestCase as IsolatedAsyncioTestCase
+    from unittest import TestCase as IsolatedAsyncioTestCase  # type: ignore
 from typing import (
     Dict,
     List,
diff --git a/slixmpp/xmlstream/handler/xmlcallback.py b/slixmpp/xmlstream/handler/xmlcallback.py
index 31534033..c1adc815 100644
--- a/slixmpp/xmlstream/handler/xmlcallback.py
+++ b/slixmpp/xmlstream/handler/xmlcallback.py
@@ -31,4 +31,4 @@ class XMLCallback(Callback):
                         stream processing. Used only by prerun.
                         Defaults to False.
         """
-        Callback.run(self, payload.xml, instream)
+        Callback.run(self, payload.xml, instream)  # type: ignore
diff --git a/slixmpp/xmlstream/handler/xmlwaiter.py b/slixmpp/xmlstream/handler/xmlwaiter.py
index 65185a5f..f730efec 100644
--- a/slixmpp/xmlstream/handler/xmlwaiter.py
+++ b/slixmpp/xmlstream/handler/xmlwaiter.py
@@ -28,4 +28,4 @@ class XMLWaiter(Waiter):
         Arguments:
             payload -- The matched stanza object.
         """
-        Waiter.prerun(self, payload.xml)
+        Waiter.prerun(self, payload.xml)  # type: ignore
diff --git a/slixmpp/xmlstream/xmlstream.py b/slixmpp/xmlstream/xmlstream.py
index aa68903e..c21cc954 100644
--- a/slixmpp/xmlstream/xmlstream.py
+++ b/slixmpp/xmlstream/xmlstream.py
@@ -1183,7 +1183,7 @@ class XMLStream(asyncio.BaseProtocol):
             if filter in already_used:
                 continue
             if iscoroutinefunction(filter):
-                data = await filter(data)
+                data = await filter(data)  # type: ignore
             else:
                 filter = cast(SyncFilter, filter)
                 data = filter(data)