Update sqlalchemy from 1.2.18 to 1.3.1

pyup-bot · pyup-bot · commit 57d6a8ca0869 · 2019-03-18T15:15:11.000+02:00
diff --git a/requirements-dev.txt b/requirements-dev.txt
@@ -13,7 +13,7 @@ pytest-cov==2.6.1
 pytest-sugar==0.9.2
 pytest==4.3.1
 python-dateutil==2.8.0
-sqlalchemy==1.2.18
+sqlalchemy==1.3.1
 trafaret==1.2.0
 pymysql==0.9.3
 -r requirements-doc.txt
