diff --git a/requirements.txt b/requirements.txt
index b4be8c00c..ae6c212de 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,4 +2,4 @@ ordereddict
 six>=1.5.2
 PyYAML
 python-jenkins>=0.4.8
-pbr>=0.8.2,<2.0
+pbr>=1.0.0,<2.0
diff --git a/tox.ini b/tox.ini
index 99ee9e40a..be1a887c6 100644
--- a/tox.ini
+++ b/tox.ini
@@ -33,7 +33,10 @@ commands = jenkins-jobs test -o .test/old/out/ .test/old/config/
 commands = jenkins-jobs test -o .test/new/out/ .test/new/config/
 
 [testenv:docs]
-commands = python setup.py build_sphinx
+commands = python setup.py build_sphinx {posargs}
+
+[testenv:docs-linkcheck]
+commands = python setup.py build_sphinx -b linkcheck
 
 [testenv:venv]
 commands = {posargs}