diff --git a/requirements.txt b/requirements.txt
index 6af7f18..2444fa6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,5 +5,5 @@
 pbr>=0.6,!=0.7,<1.0
 Babel>=1.3
 six>=1.9.0
-oslo.utils>=1.2.0 # Apache-2.0
+oslo.utils>=1.4.0,<1.5.0                       # Apache-2.0
 wrapt>=1.7.0 # BSD License
diff --git a/test-requirements.txt b/test-requirements.txt
index 8592bde..daf8b02 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -8,8 +8,8 @@ coverage>=3.6
 discover
 python-subunit>=0.0.18
 sphinx>=1.1.2,!=1.2.0,!=1.3b1,<1.3
-oslosphinx>=2.2.0  # Apache-2.0
-oslotest>=1.2.0  # Apache-2.0
+oslosphinx>=2.5.0,<2.6.0  # Apache-2.0
+oslotest>=1.5.1,<1.6.0  # Apache-2.0
 testrepository>=0.0.18
 testscenarios>=0.4
 testtools>=0.9.36,!=1.2.0