diff --git a/requirements.txt b/requirements.txt
index 829caeec..1ce16a72 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,8 +2,8 @@
 # of appearance. Changing the order has an impact on the overall integration
 # process, which may cause wedges in the gate later.
 pbr>=1.6
-requests>=2.5.2
+requests!=2.8.0,>=2.5.2
 six>=1.9.0
 stevedore>=1.5.0 # Apache-2.0
-oslo.utils>=2.0.0 # Apache-2.0
+oslo.utils!=2.6.0,>=2.4.0 # Apache-2.0
 os-client-config!=1.6.2,>=1.4.0
diff --git a/test-requirements.txt b/test-requirements.txt
index 0ad5209f..8cb0ab31 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -9,7 +9,7 @@ fixtures>=1.3.1
 mock>=1.2
 python-subunit>=0.0.18
 oslosphinx>=2.5.0 # Apache-2.0
-os-testr>=0.1.0
+os-testr>=0.4.1
 requests-mock>=0.6.0 # Apache-2.0
 sphinx!=1.2.0,!=1.3b1,<1.3,>=1.1.2
 testrepository>=0.0.18