diff --git a/demo/pt-requirements.txt b/demo/pt-requirements.txt
index 639f79c60..5b098487a 100644
--- a/demo/pt-requirements.txt
+++ b/demo/pt-requirements.txt
@@ -1,2 +1,2 @@
--e git+https://github.com/mindee/doctr.git#egg=python-doctr[torch]
+-e git+https://github.com/mindee/doctr.git#egg=python-doctr[torch,viz]
 streamlit>=1.0.0
diff --git a/demo/tf-requirements.txt b/demo/tf-requirements.txt
index f16f3aa06..2fd4b08a6 100644
--- a/demo/tf-requirements.txt
+++ b/demo/tf-requirements.txt
@@ -1,2 +1,2 @@
--e git+https://github.com/mindee/doctr.git#egg=python-doctr[tf]
+-e git+https://github.com/mindee/doctr.git#egg=python-doctr[tf,viz]
 streamlit>=1.0.0