diff --git a/tox.ini b/tox.ini
index b14aa29..d292775 100644
--- a/tox.ini
+++ b/tox.ini
@@ -14,6 +14,7 @@ deps =
     git+https://github.com/ansible-community/ansible-lint.git
     molecule-plugins[vagrant]@git+https://github.com/ansible-community/molecule-plugins.git
     https://github.com/ansible/ansible/archive/devel.tar.gz
+    passlib
 commands =
     ansible-lint
     molecule test
@@ -26,6 +27,7 @@ deps =
     ansibledevel: https://github.com/ansible/ansible/archive/devel.tar.gz
     ansible-lint
     molecule-plugins[vagrant]
+    passlib
 commands =
     ansible-lint
     molecule test