diff -ur botocore-1.4.52.orig/requirements.txt botocore-1.4.52/requirements.txt
--- botocore-1.4.52.orig/requirements.txt	2016-09-12 23:35:35.452304693 +0100
+++ botocore-1.4.52/requirements.txt	2016-09-12 23:36:02.418770777 +0100
@@ -1,5 +1,5 @@
 tox>=2.3.1,<3.0.0
-python-dateutil>=2.1,<3.0.0
+python-dateutil>=1.4,<3.0.0
 nose==1.3.0
 mock==1.3.0
 wheel==0.24.0