diff --git a/.readthedocs.yml b/.readthedocs.yml
index b61b3f17..90f0fc0a 100644
--- a/.readthedocs.yml
+++ b/.readthedocs.yml
@@ -6,7 +6,7 @@ build:
     python: "3.11"
   jobs:
     post_install:
-      - pip install .[docs,redis]
+      - pip install .[docs,redis,mongo]
 
 sphinx:
   configuration: docs/conf.py
diff --git a/CHANGES/1501.doc.rst b/CHANGES/1501.doc.rst
new file mode 100644
index 00000000..780dd167
--- /dev/null
+++ b/CHANGES/1501.doc.rst
@@ -0,0 +1 @@
+Fixed MongoStorage section in the documentation by adding extra dependency to ReadTheDocs configuration.