Update pip from 19.1 to 19.1.1

pyup-bot · pyup-bot · commit 7aeb2657a67d · 2019-05-06T21:34:08.000+02:00
diff --git a/requirements/pip.txt b/requirements/pip.txt
@@ -1,5 +1,5 @@
 # Base packages
-pip==19.1
+pip==19.1.1
 appdirs==1.4.3
 virtualenv==16.5.0
 
