diff --git a/docs/docsite/rst/user_guide/windows_winrm.rst b/docs/docsite/rst/user_guide/windows_winrm.rst
index e9a40502566..efad3e07710 100644
--- a/docs/docsite/rst/user_guide/windows_winrm.rst
+++ b/docs/docsite/rst/user_guide/windows_winrm.rst
@@ -566,6 +566,8 @@ encryption uses the more secure TLS protocol instead. If both transport and
 message encryption is required, set ``ansible_winrm_message_encryption=always``
 in the host vars.
 
+.. Note:: Message encryption over HTTP requires pywinrm>=0.3.0.
+
 A last resort is to disable the encryption requirement on the Windows host. This
 should only be used for development and debugging purposes, as anything sent
 from Ansible can be viewed, manipulated and also the remote session can completely