diff --git a/requirements.txt b/requirements.txt
index 47f5abbb..16b55619 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@
 Babel>=2.3.4 # BSD
 dib-utils # Apache-2.0
 pbr>=1.6 # Apache-2.0
-PyYAML>=3.1.0 # MIT
+PyYAML>=3.10.0 # MIT
 flake8<2.6.0,>=2.5.4 # MIT
 six>=1.9.0 # MIT
-oslosphinx!=3.4.0,>=2.5.0 # Apache-2.0
+oslosphinx>=4.7.0 # Apache-2.0
diff --git a/test-requirements.txt b/test-requirements.txt
index 04ab6d6b..8671a449 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -7,8 +7,8 @@ oslotest>=1.10.0 # Apache-2.0
 testrepository>=0.0.18 # Apache-2.0/BSD
 
 # Doc requirements
-sphinx!=1.3b1,<1.3,>=1.2.1 # BSD
-oslosphinx!=3.4.0,>=2.5.0 # Apache-2.0
+sphinx!=1.3b1,<1.4,>=1.2.1 # BSD
+oslosphinx>=4.7.0 # Apache-2.0
 
 # releasenotes
 reno>=1.8.0 # Apache2