1 files changed, 2 insertions, 0 deletions
diff --git a/setup.py b/setup.py
index 08843fe2a3..494f50239f 100755
--- a/setup.py
+++ b/setup.py
@@ -102,6 +102,8 @@ CONDITIONAL_REQUIREMENTS["lint"] = [
     "flake8",
 ]
 
+CONDITIONAL_REQUIREMENTS["mypy"] = ["mypy==0.790", "mypy-zope"]
+
 # Dependencies which are exclusively required by unit test code. This is
 # NOT a list of all modules that are necessary to run the unit tests.
 # Tests assume that all optional dependencies are installed.