Update sphinx from 1.7.1 to 1.7.4 (#468)

pyup.io bot · jettify · commit dd53bfecba3f · 2018-04-30T22:55:00.000+03:00
diff --git a/requirements.txt b/requirements.txt
@@ -4,7 +4,7 @@ ipdb==0.11
 ipython==6.2.1
 flake8==3.4.1
 -e .[sa]
-sphinx==1.7.1
+sphinx==1.7.4
 tox==2.8.1
 pytest==3.4.2
 pytest-cov==2.5.1
