diff --git a/requirements.txt b/requirements.txt
index ec996570d..95710e6e9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -15,12 +15,12 @@ WebOb>=1.2.3
 stevedore>=1.5.0 # Apache-2.0
 six>=1.9.0
 oslo.cache>=0.8.0 # Apache-2.0
-oslo.config>=2.3.0 # Apache-2.0
+oslo.config>=2.6.0 # Apache-2.0
 oslo.context>=0.2.0 # Apache-2.0
 oslo.i18n>=1.5.0 # Apache-2.0
 oslo.log>=1.8.0 # Apache-2.0
-oslo.serialization>=1.4.0 # Apache-2.0
-oslo.utils>=2.4.0 # Apache-2.0
+oslo.serialization>=1.10.0 # Apache-2.0
+oslo.utils!=2.6.0,>=2.4.0 # Apache-2.0
 oslo.policy>=0.5.0 # Apache-2.0
 SQLAlchemy<1.1.0,>=0.9.9
 enum34;python_version=='2.7' or python_version=='2.6'
diff --git a/test-requirements.txt b/test-requirements.txt
index 4beb62cef..c8c2dc8c2 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -25,4 +25,4 @@ sphinx!=1.2.0,!=1.3b1,<1.3,>=1.1.2
 oslosphinx>=2.5.0 # Apache-2.0
 openstack-doc-tools>=0.23
 oslotest>=1.10.0 # Apache-2.0
-reno>=0.1.1  # Apache2
+reno>=0.1.1 # Apache2