diff --git a/doc/requirements.txt b/doc/requirements.txt
index 54fca18..2a94e8b 100644
--- a/doc/requirements.txt
+++ b/doc/requirements.txt
@@ -3,11 +3,11 @@
 # process, which may cause wedges in the gate later.
 
 sphinxcontrib-apidoc>=0.2.0 # BSD
-sphinx!=1.6.6,!=1.6.7,>=1.6.2,!=2.1.0;  # BSD
-openstackdocstheme>=1.18.1 # Apache-2.0
+sphinx>=2.0.0,!=2.1.0 # BSD
+openstackdocstheme>=2.2.1 # Apache-2.0
 
 # releasenotes
-reno>=2.5.0 # Apache-2.0
+reno>=3.1.0 # Apache-2.0
 
 # PDF Docs
 sphinxcontrib-svg2pdfconverter>=0.1.0 # BSD