diff --git a/ippisite/requirements.txt b/ippisite/requirements.txt
index 6df5a10110e0329ff8a39b5cc4b06fca6a6a7756..f6efa9fa2f22f0343e58c294c5bcc2b680ed4d20 100644
--- a/ippisite/requirements.txt
+++ b/ippisite/requirements.txt
@@ -1,6 +1,7 @@
 Django==1.11
 django-bootstrap3
 bioservices
+typing
 django-extensions
 pygraphviz
 pydot