diff --git a/requirements-dev.txt b/requirements-dev.txt
index 0f90b53..96953eb 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -6,3 +6,9 @@ pytest-cov
 sphinx
 sphinx-rtd-theme
 mypy
+types-docutils
+types-mock
+types-Pygments
+types-pyOpenSSL
+types-pytz
+types-setuptools