diff --git a/requirements.txt b/requirements.txt
index 73ee0639eb07da9a58b076055cece5a86d79979e..a6b2d7928ef0b1f0f2dcbb674533c4ea208a4d2c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -15,3 +15,6 @@ netifaces
 pytest
 pytest-mock
 responses
+sphinx
+sphinx-rtd-theme
+sphinxcontrib-plantuml