commit a1776c57d960e4949ced1ebf0a406e969424eb27
Author: Alan Bishop <abishop@redhat.com>
Date:   Mon Oct 5 08:49:39 2020 -0700

    doc: Don't use ansible 2.10.0
    
    Don't use ansible 2.10.0 when building docs. See [1] for related
    patch.
    
    [1] I696605e312692b24059178b82446d947023f35d9
    
    Related-Bug: #1896738
    Change-Id: I9916daf72a481269e66f25cfbbd940eb134eecdb
    (cherry picked from commit 85478583d47ad68d7e18c2c5f168616831e9a39f)
    (cherry picked from commit 174639769396615316ba83a92452685c091ded17)

diff --git a/molecule-requirements.txt b/molecule-requirements.txt
index 1eba42c..4c466eb 100644
--- a/molecule-requirements.txt
+++ b/molecule-requirements.txt
@@ -12,6 +12,7 @@ netaddr
 jinja2>=2.8.0,<3
 
 # this is required for the docs build jobs
+ansible>=2.8,!=2.8.9,!=2.9.12,<2.10.0
 sphinx
 openstackdocstheme>=1.29.2 # Apache-2.0
 reno>=2.11.3 # Apache-2.0