diff --git a/README.rst b/README.rst
index fe5f5f22..679980f8 100644
--- a/README.rst
+++ b/README.rst
@@ -47,7 +47,7 @@ Dependencies
 All of the dependencies can easily be installed via `pip <https://pip.pypa.io/>`_.
 At the very least, you'll need these two packages to use MongoEngine:
 
-- pymongo>=3.5
+- pymongo>=3.4
 - six>=1.10.0
 
 If you utilize a ``DateTimeField``, you might also use a more flexible date parser: