diff --git a/molecule-requirements.txt b/molecule-requirements.txt
index a81d2496c..77e25b488 100644
--- a/molecule-requirements.txt
+++ b/molecule-requirements.txt
@@ -7,7 +7,7 @@ pytest-cov
 pytest-html
 pytest-xdist
 mock
-molecule>=2.22rc1
+molecule>=2.22rc1,<3
 netaddr
 
 # this is required for the docs build jobs
diff --git a/zuul.d/molecule.yaml b/zuul.d/molecule.yaml
index af2584c38..16f0542f4 100644
--- a/zuul.d/molecule.yaml
+++ b/zuul.d/molecule.yaml
@@ -115,6 +115,7 @@
     - ^_skeleton_role_/.*
     - ^role-addition.yml
     - ^tox.ini
+    - ^molecule-requirements.txt
     name: tripleo-ansible-centos-7-role-addition
     nodeset: centos-7
     parent: tox-molecule