diff --git a/source/requirements.txt b/source/requirements.txt
index ddff895cd516e517e379dc6d1dcbb9d11391a57b..b56b0b9baf4664c7afec22c80c276347b72a5f5a 100644
--- a/source/requirements.txt
+++ b/source/requirements.txt
@@ -1,3 +1,6 @@
 # Defining the exact version will make sure things don't break
 sphinx==3.4.3
 sphinx_rtd_theme==0.5.1
+jinja2==2.11
+commonmark==0.9.1
+recommonmark==0.5.0