diff --git a/requirements.txt b/requirements.txt
index a13c0124a..9583c630b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 pbr>=0.5.21,<1.0
 argparse
-iso8601>=0.1.4
+iso8601>=0.1.8
 PrettyTable>=0.6,<0.8
 requests>=1.1
 simplejson>=2.0.9
diff --git a/test-requirements.txt b/test-requirements.txt
index 1d440816c..862590d15 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -1,4 +1,4 @@
-hacking>=0.5.6,<0.8
+hacking>=0.8.0,<0.9
 
 coverage>=3.6
 discover