diff --git a/setup.py b/setup.py
index 00e7b012a..0b8caffb6 100644
--- a/setup.py
+++ b/setup.py
@@ -63,7 +63,9 @@
     sys.version_info[:2] >= (3, 6)
     and platform.python_implementation() != "PyPy"
 ):
-    EXTRAS_REQUIRE["tests_no_zope"].extend(["mypy", "pytest-mypy-plugins"])
+    EXTRAS_REQUIRE["tests_no_zope"].extend(
+        ["mypy!=0.940", "pytest-mypy-plugins"]
+    )
 
 EXTRAS_REQUIRE["tests"] = EXTRAS_REQUIRE["tests_no_zope"] + ["zope.interface"]
 EXTRAS_REQUIRE["dev"] = (
diff --git a/tox.ini b/tox.ini
index ddcbc4dbb..48e969b47 100644
--- a/tox.ini
+++ b/tox.ini
@@ -111,7 +111,7 @@ commands = towncrier --draft
 basepython = python3.10
 deps = mypy>=0.902
 commands =
-    mypy src/attr/__init__.pyi src/attr/_version_info.pyi src/attr/converters.pyi src/attr/exceptions.pyi src/attr/filters.pyi src/attr/setters.pyi src/attr/validators.pyi
+    mypy src/attrs/__init__.pyi src/attr/__init__.pyi src/attr/_version_info.pyi src/attr/converters.pyi src/attr/exceptions.pyi src/attr/filters.pyi src/attr/setters.pyi src/attr/validators.pyi
     mypy tests/typing_example.py