diff --git a/doc/requirements.txt b/doc/requirements.txt
index 04e2401d..cc53a312 100644
--- a/doc/requirements.txt
+++ b/doc/requirements.txt
@@ -1,2 +1,6 @@
 sphinx_copybutton
+neo4j==5.10.0
+pytz>=2021.1
+neobolt==1.7.17
+six==1.16.0