diff --git a/requirements_dev.txt b/requirements_dev.txt
index 30cce95..368cdd6 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -1,4 +1,4 @@
-pip==21.3
+pip==21.3.1
 bumpversion==0.6.0
 wheel==0.37.0
 watchdog==2.1.6