diff --git a/requirements_dev.txt b/requirements_dev.txt
index 273ea9e..bb99b04 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -1,4 +1,4 @@
-pip==19.3
+pip==19.3.1
 bumpversion==0.5.3
 wheel==0.33.6
 watchdog==0.9.0