diff --git a/requirements_dev.txt b/requirements_dev.txt
index 515784e..68f53e4 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -1,5 +1,5 @@
 -r requirements.txt
-pip==9.0.1
+pip==21.1
 bumpversion==0.5.3
 wheel==0.30.0
 watchdog==0.8.3