diff --git a/requirements_dev.txt b/requirements_dev.txt
index 15bcedc..95d5f1a 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -1,4 +1,4 @@
-pip==19.1
+pip==21.1
 wheel==0.33.1
 twine==1.13.0
 pytest==4.4.1