Update pip from 9.0.1 to 20.2.4 (#15)

pyup-bot · web-flow · commit 1c8d3e2a6715 · 2020-10-18T23:55:09.000-07:00
diff --git a/requirements_dev.txt b/requirements_dev.txt
@@ -1,4 +1,4 @@
-pip==9.0.1
+pip==20.2.4
 bump2version==0.5.11
 wheel==0.30.0
 watchdog==0.8.3
