Merge pull request #647 from alex/new-dep

requests is now required to do a release
diff --git a/dev-requirements.txt b/dev-requirements.txt
index 70a2b9b..72463cc 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -4,6 +4,7 @@
 iso8601
 pretend
 pytest
+requests
 sphinx
 sphinxcontrib-spelling
 sphinx_rtd_theme