diff --git a/requirements/pip-tools.txt b/requirements/pip-tools.txt
index 8a2348f..53b0fb2 100644
--- a/requirements/pip-tools.txt
+++ b/requirements/pip-tools.txt
@@ -4,7 +4,7 @@
 #
 #    make upgrade
 #
-build==1.1.1
+build==1.2.1
     # via pip-tools
 click==8.1.7
     # via pip-tools