diff --git a/molecule-requirements.txt b/molecule-requirements.txt
index 9c4bd872d..cd8117ed4 100644
--- a/molecule-requirements.txt
+++ b/molecule-requirements.txt
@@ -15,6 +15,7 @@ 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>=1.8.0,<2.0.0;python_version=='2.7' # BSD
 sphinx>=1.8.0,!=2.1.0;python_version>='3.4' # BSD
 openstackdocstheme>=1.29.2 # Apache-2.0