diff --git a/documentation/requirements.txt b/documentation/requirements.txt
index f724bef674040099780016a28ac244a80e84c061..edc09f55d055a709a9d412a99ddc5ebed38339f5 100644
--- a/documentation/requirements.txt
+++ b/documentation/requirements.txt
@@ -1,6 +1,7 @@
 click==7.1.2
 future==0.18.2
 htmlmin==0.1.12
+importlib-metadata==4.13.0
 Jinja2==2.11.2
 joblib==0.17.0
 jsmin==2.2.2