diff --git a/pyproject.toml b/pyproject.toml
index 512d48546e..dda109cff5 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -141,11 +141,14 @@ ignore_missing_imports = true
   ignore_errors = true
   ignore_missing_imports = true
 
-  # jinja has syntax in it that requires python3 and causes a parse error
-  # skip importing it
+  # pytest (which we depend on) optionally imports numpy, which requires Python 3.8 in
+  # recent versions. mypy still imports its .pyi file, which has positional-only
+  # arguments, which don't work in 3.7, which causes mypy to bail out early if you have
+  # numpy installed.
   [[tool.mypy.overrides]]
-  module = 'jinja2'
+  module = 'numpy'
   follow_imports = 'skip'
+  follow_imports_for_stubs = true
 
 [tool.pyright]
 useLibraryCodeForTypes = true