diff --git a/doc/requirements.txt b/doc/requirements.txt
index 7b8ff0920a..b3abbc3a7b 100644
--- a/doc/requirements.txt
+++ b/doc/requirements.txt
@@ -3,7 +3,7 @@
 # process, which may cause wedges in the gate later.
 
 # this is required for the docs build jobs
-sphinx!=1.6.6,<1.7.0,>=1.6.2 # BSD
+sphinx!=1.6.6,!=1.6.7,>=1.6.2 # BSD
 openstackdocstheme>=1.18.1 # Apache-2.0
 reno>=2.5.0 # Apache-2.0
 sphinxmark>=0.1.14 # Apache-2.0
diff --git a/requirements.txt b/requirements.txt
index 54d032ae71..7f8d4f6a21 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,10 +2,10 @@
 # of appearance. Changing the order has an impact on the overall integration
 # process, which may cause wedges in the gate later.
 pyasn1!=0.2.3,>=0.1.8 # BSD
-pyOpenSSL>=16.2.0 # Apache-2.0
+pyOpenSSL>=17.1.0 # Apache-2.0
 ndg-httpsclient>=0.4.2;python_version<'3.0' # BSD
 netaddr>=0.7.18 # BSD
 PrettyTable<0.8,>=0.7.1 # BSD
 python-memcached>=1.56 # PSF
-PyYAML>=3.10 # MIT
+PyYAML>=3.12 # MIT
 virtualenv>=14.0.6 # MIT