diff --git a/requirements.txt b/requirements.txt
index 5219d0c3e9c8..e6c8bbc5e6e9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -18,8 +18,8 @@ netaddr
 suds>=0.4
 paramiko>=1.8.0
 pyasn1
-Babel>=0.9.6
-iso8601>=0.1.4
+Babel>=1.3
+iso8601>=0.1.8
 jsonschema>=1.3.0,!=1.4.0
 python-cinderclient>=1.0.6
 python-neutronclient>=2.3.0,<3
diff --git a/test-requirements.txt b/test-requirements.txt
index 798971299356..2a05b889de13 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -9,7 +9,7 @@ MySQL-python
 psycopg2
 pylint==0.25.2
 python-subunit
-sphinx>=1.1.2
+sphinx>=1.1.2,<1.2
 oslo.sphinx
 testrepository>=0.0.17
 testtools>=0.9.32