diff --git a/dev_requirements.txt b/dev_requirements.txt
index b893bd7..2b3b1bb 100644
--- a/dev_requirements.txt
+++ b/dev_requirements.txt
@@ -2,3 +2,5 @@ pytest>=3.2.0
 sphinx>=1.6.4
 sphinx-autobuild>=0.7.1
 sphinx_rtd_theme>=0.2.4
+pypandoc
+twine