Now depends on billiard 2.7.3.4

requirements/default.txt

@@ -1,3 +1,3 @@
-billiard>=2.7.3.3
+billiard>=2.7.3.4
 python-dateutil>=1.5,<2.0
 kombu>=2.1.7,<3.0

setup.cfg

@@ -16,7 +16,7 @@ upload-dir = docs/.build/html
 [bdist_rpm]
 requires = uuid
            importlib
-           billiard>=2.7.3.3
+           billiard>=2.7.3.4
            python-dateutil >= 1.5
            kombu >= 2.1.7
            ordereddict