diff --git a/doc/source/conf.py b/doc/source/conf.py
index 9eb5ca2f..88cd7682 100644
--- a/doc/source/conf.py
+++ b/doc/source/conf.py
@@ -27,11 +27,13 @@ copyright = u'2015-2016, Various Authors'
 # built documents.
 #
 
-from diskimage_builder import version as dib_version
+import pbr.version
+
+version_info =  pbr.version.VersionInfo('diskimage-builder')
 # The short X.Y version.
-release = dib_version.version_info.release_string()
+release = version_info.release_string()
 # The full version, including alpha/beta/rc tags.
-version = dib_version.version_info.version_string()
+version = version_info.version_string()
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
diff --git a/requirements.txt b/requirements.txt
index dbfbdb01..f2333c0b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,3 +7,4 @@ pbr>=1.6 # Apache-2.0
 PyYAML>=3.1.0 # MIT
 flake8<2.6.0,>=2.5.4 # MIT
 six>=1.9.0 # MIT
+oslosphinx>=2.5.0,!=3.4.0  # Apache-2.0