diff --git a/.github/workflows/test-python.yml b/.github/workflows/test-python.yml
index 89d9830e82..6d5f26c503 100644
--- a/.github/workflows/test-python.yml
+++ b/.github/workflows/test-python.yml
@@ -59,8 +59,8 @@ jobs:
           cache-dependency-path: 'setup.py'
       - name: Install dependencies
         run: |
-          python -m pip install -U pip mypy==0.942
-          pip install -e ".[zstd, srv]"
+          python -m pip install -U pip mypy
+          pip install -e ".[zstd, srv, encryption, ocsp]"
       - name: Run mypy
         run: |
           mypy --install-types --non-interactive bson gridfs tools pymongo
diff --git a/bson/__init__.py b/bson/__init__.py
index cc0850709e..2db1fb5d0b 100644
--- a/bson/__init__.py
+++ b/bson/__init__.py
@@ -61,8 +61,8 @@
 import struct
 import sys
 import uuid
-from codecs import utf_8_decode as _utf_8_decode  # type: ignore[attr-defined]
-from codecs import utf_8_encode as _utf_8_encode  # type: ignore[attr-defined]
+from codecs import utf_8_decode as _utf_8_decode
+from codecs import utf_8_encode as _utf_8_encode
 from collections import abc as _abc
 from typing import (
     IO,
@@ -621,7 +621,7 @@ def _make_c_string_check(string: Union[str, bytes]) -> bytes:
     else:
         if "\x00" in string:
             raise InvalidDocument("BSON keys / regex patterns must not contain a NUL character")
-        return cast(bytes, _utf_8_encode(string)[0]) + b"\x00"
+        return _utf_8_encode(string)[0] + b"\x00"
 
 
 def _make_c_string(string: Union[str, bytes]) -> bytes:
@@ -633,7 +633,7 @@ def _make_c_string(string: Union[str, bytes]) -> bytes:
         except UnicodeError:
             raise InvalidStringData("strings in documents must be valid UTF-8: %r" % string)
     else:
-        return cast(bytes, _utf_8_encode(string)[0]) + b"\x00"
+        return _utf_8_encode(string)[0] + b"\x00"
 
 
 def _make_name(string: str) -> bytes:
@@ -641,7 +641,7 @@ def _make_name(string: str) -> bytes:
     # Keys can only be text in python 3.
     if "\x00" in string:
         raise InvalidDocument("BSON keys / regex patterns must not contain a NUL character")
-    return cast(bytes, _utf_8_encode(string)[0]) + b"\x00"
+    return _utf_8_encode(string)[0] + b"\x00"
 
 
 def _encode_float(name: bytes, value: float, dummy0: Any, dummy1: Any) -> bytes:
@@ -1308,7 +1308,7 @@ def encode(
         """
         return cls(encode(document, check_keys, codec_options))
 
-    def decode(self, codec_options: CodecOptions = DEFAULT_CODEC_OPTIONS) -> _DocumentType:  # type: ignore[override]
+    def decode(self, codec_options: "CodecOptions[_DocumentType]" = DEFAULT_CODEC_OPTIONS) -> _DocumentType:  # type: ignore[override,assignment]
         """Decode this BSON data.
 
         By default, returns a BSON document represented as a Python
diff --git a/doc/conf.py b/doc/conf.py
index 1e18eb29bf..f66de3868a 100644
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -192,6 +192,6 @@
 
 
 intersphinx_mapping = {
-    "gevent": ("http://www.gevent.org/", None),
+    "gevent": ("https://www.gevent.org/", None),
     "py": ("https://docs.python.org/3/", None),
 }
diff --git a/pymongo/pyopenssl_context.py b/pymongo/pyopenssl_context.py
index 758a741b6f..2d9c904bb3 100644
--- a/pymongo/pyopenssl_context.py
+++ b/pymongo/pyopenssl_context.py
@@ -135,7 +135,7 @@ def recv(self, *args, **kwargs):
 
     def recv_into(self, *args, **kwargs):
         try:
-            return self._call(super(_sslConn, self).recv_into, *args, **kwargs)  # type: ignore
+            return self._call(super(_sslConn, self).recv_into, *args, **kwargs)
         except _SSL.SysCallError as exc:
             # Suppress ragged EOFs to match the stdlib.
             if self.suppress_ragged_eofs and _ragged_eof(exc):
@@ -146,12 +146,9 @@ def sendall(self, buf, flags=0):
         view = memoryview(buf)
         total_length = len(buf)
         total_sent = 0
-        sent = 0
         while total_sent < total_length:
             try:
-                sent = self._call(
-                    super(_sslConn, self).send, view[total_sent:], flags  # type: ignore
-                )
+                sent = self._call(super(_sslConn, self).send, view[total_sent:], flags)
             # XXX: It's not clear if this can actually happen. PyOpenSSL
             # doesn't appear to have any interrupt handling, nor any interrupt
             # errors for OpenSSL connections.
@@ -162,7 +159,7 @@ def sendall(self, buf, flags=0):
             # https://github.com/pyca/pyopenssl/blob/19.1.0/src/OpenSSL/SSL.py#L1756
             # https://www.openssl.org/docs/man1.0.2/man3/SSL_write.html
             if sent <= 0:
-                raise Exception("Connection closed")
+                raise OSError("connection closed")
             total_sent += sent
 
 
diff --git a/test/test_auth.py b/test/test_auth.py
index 69ed27bda0..20d53ef24b 100644
--- a/test/test_auth.py
+++ b/test/test_auth.py
@@ -329,8 +329,8 @@ def auth_string(user, password):
         bad_user = MongoClient(auth_string("not-user", SASL_PASS))
         bad_pwd = MongoClient(auth_string(SASL_USER, "not-pwd"))
         # OperationFailure raised upon connecting.
-        self.assertRaises(OperationFailure, bad_user.admin.command, "ping")
-        self.assertRaises(OperationFailure, bad_pwd.admin.command, "ping")
+        self.assertRaises(OperationFailure, bad_user.admin.command, "ping")  # type: ignore[arg-type]
+        self.assertRaises(OperationFailure, bad_pwd.admin.command, "ping")  # type: ignore[arg-type]
 
 
 class TestSCRAMSHA1(IntegrationTest):
diff --git a/test/test_bson.py b/test/test_bson.py
index 8ad65f3412..aa77954fa2 100644
--- a/test/test_bson.py
+++ b/test/test_bson.py
@@ -117,7 +117,8 @@ def tzname(self, dt):
 
 class TestBSON(unittest.TestCase):
     def assertInvalid(self, data):
-        self.assertRaises(InvalidBSON, decode, data)
+        # Remove type ignore after: https://github.com/python/mypy/issues/13220
+        self.assertRaises(InvalidBSON, decode, data)  # type: ignore[arg-type]
 
     def check_encode_then_decode(self, doc_class=dict, decoder=decode, encoder=encode):
 
@@ -1025,11 +1026,17 @@ def test_unicode_decode_error_handler(self):
 
         # Ensure that strict mode raises an error.
         for invalid in [invalid_key, invalid_val, invalid_both]:
+            # Remove type ignore after: https://github.com/python/mypy/issues/13220
             self.assertRaises(
-                InvalidBSON, decode, invalid, CodecOptions(unicode_decode_error_handler="strict")
+                InvalidBSON,
+                decode,  # type: ignore[arg-type]
+                invalid,
+                CodecOptions(unicode_decode_error_handler="strict"),
             )
-            self.assertRaises(InvalidBSON, decode, invalid, CodecOptions())
-            self.assertRaises(InvalidBSON, decode, invalid)
+            self.assertRaises(
+                InvalidBSON, decode, invalid, CodecOptions()  # type: ignore[arg-type]
+            )
+            self.assertRaises(InvalidBSON, decode, invalid)  # type: ignore[arg-type]
 
         # Test all other error handlers.
         for handler in ["replace", "backslashreplace", "surrogateescape", "ignore"]:
@@ -1046,8 +1053,12 @@ def test_unicode_decode_error_handler(self):
         dec = decode(enc, CodecOptions(unicode_decode_error_handler="junk"))
         self.assertEqual(dec, {"keystr": "foobar"})
 
+        # Remove type ignore after: https://github.com/python/mypy/issues/13220
         self.assertRaises(
-            InvalidBSON, decode, invalid_both, CodecOptions(unicode_decode_error_handler="junk")
+            InvalidBSON,
+            decode,  # type: ignore[arg-type]
+            invalid_both,
+            CodecOptions(unicode_decode_error_handler="junk"),
         )
 
     def round_trip_pickle(self, obj, pickled_with_older):
diff --git a/test/test_change_stream.py b/test/test_change_stream.py
index 11ed2895ac..b5b260086d 100644
--- a/test/test_change_stream.py
+++ b/test/test_change_stream.py
@@ -1084,8 +1084,9 @@ def setFailPoint(self, scenario_dict):
         fail_cmd = SON([("configureFailPoint", "failCommand")])
         fail_cmd.update(fail_point)
         client_context.client.admin.command(fail_cmd)
+        # Remove type ignore after: https://github.com/python/mypy/issues/13220
         self.addCleanup(
-            client_context.client.admin.command,
+            client_context.client.admin.command,  # type: ignore[arg-type]
             "configureFailPoint",
             fail_cmd["configureFailPoint"],
             mode="off",
diff --git a/test/test_collection.py b/test/test_collection.py
index bea2ed6ca6..37f1b1eae2 100644
--- a/test/test_collection.py
+++ b/test/test_collection.py
@@ -19,7 +19,7 @@
 import contextlib
 import re
 import sys
-from codecs import utf_8_decode  # type: ignore
+from codecs import utf_8_decode
 from collections import defaultdict
 from typing import Iterable, no_type_check
 
diff --git a/test/test_database.py b/test/test_database.py
index d49ac8324f..a1c0439089 100644
--- a/test/test_database.py
+++ b/test/test_database.py
@@ -604,13 +604,14 @@ def test_command_max_time_ms(self):
         try:
             db = self.client.pymongo_test
             db.command("count", "test")
-            self.assertRaises(ExecutionTimeout, db.command, "count", "test", maxTimeMS=1)
+            # Remove type ignore after: https://github.com/python/mypy/issues/13220
+            self.assertRaises(ExecutionTimeout, db.command, "count", "test", maxTimeMS=1)  # type: ignore[arg-type]
             pipeline = [{"$project": {"name": 1, "count": 1}}]
             # Database command helper.
             db.command("aggregate", "test", pipeline=pipeline, cursor={})
             self.assertRaises(
                 ExecutionTimeout,
-                db.command,
+                db.command,  # type: ignore[arg-type]
                 "aggregate",
                 "test",
                 pipeline=pipeline,