diff --git a/requirements.txt b/requirements.txt
index d21ad4b2..6603172b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,6 +2,6 @@
 # of appearance. Changing the order has an impact on the overall integration
 # process, which may cause wedges in the gate later.
 
-oslo.config>=1.9.0  # Apache-2.0
-oslo.i18n>=1.3.0  # Apache-2.0
-oslo.serialization>=1.2.0  # Apache-2.0
+oslo.config>=1.9.3,<1.10.0  # Apache-2.0
+oslo.i18n>=1.5.0,<1.6.0  # Apache-2.0
+oslo.serialization>=1.4.0,<1.5.0               # Apache-2.0
diff --git a/test-requirements.txt b/test-requirements.txt
index d921e2b5..a1f9f7bb 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -3,8 +3,8 @@
 # process, which may cause wedges in the gate later.
 
 hacking>=0.10.0,<0.11
-oslotest>=1.2.0  # Apache-2.0
+oslotest>=1.5.1,<1.6.0  # Apache-2.0
 
 # These are needed for docs generation
-oslosphinx>=2.2.0  # Apache-2.0
+oslosphinx>=2.5.0,<2.6.0  # Apache-2.0
 sphinx>=1.1.2,!=1.2.0,!=1.3b1,<1.3