diff --git a/requirements.txt b/requirements.txt
index bd7e08dd..69472706 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 pbr>=0.5.21,<1.0
 argparse
 httplib2
-iso8601>=0.1.4
+iso8601>=0.1.8
 PrettyTable>=0.6,<0.8
 python-keystoneclient>=0.4.1
 PyYAML>=3.1.0
diff --git a/test-requirements.txt b/test-requirements.txt
index c18f5ee9..121780d3 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -2,7 +2,7 @@
 pep8==1.4.5
 pyflakes>=0.7.2,<0.7.4
 flake8==2.0
-hacking>=0.5.6,<0.8
+hacking>=0.8.0,<0.9
 coverage>=3.6
 discover
 fixtures>=0.3.14