diff --git a/requirements.txt b/requirements.txt
index 06a75b8..88459db 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,7 +7,7 @@ cliff!=1.16.0,!=1.17.0,>=1.15.0 # Apache-2.0
 oslo.i18n>=2.1.0 # Apache-2.0
 oslo.log>=1.14.0 # Apache-2.0
 oslo.serialization>=1.10.0 # Apache-2.0
-oslo.utils>=3.5.0 # Apache-2.0
+oslo.utils>=3.9.0 # Apache-2.0
 python-keystoneclient!=1.8.0,!=2.1.0,>=1.7.0 # Apache-2.0
 requests>=2.10.0 # Apache-2.0
 six>=1.9.0 # MIT
diff --git a/test-requirements.txt b/test-requirements.txt
index 429b147..74436a3 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -12,5 +12,5 @@ oslosphinx!=3.4.0,>=2.5.0 # Apache-2.0
 testrepository>=0.0.18 # Apache-2.0/BSD
 testscenarios>=0.4 # Apache-2.0/BSD
 testtools>=1.4.0 # MIT
-mock>=1.2 # BSD
+mock>=2.0 # BSD
 WebOb>=1.2.3 # MIT