diff --git a/requirements_dev.txt b/requirements_dev.txt
index f63454b..8e0c964 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -1,4 +1,4 @@
-pip==18.1
+pip==21.2.4
 bumpversion==0.5.3
 wheel==0.32.3
 watchdog==0.9.0