diff --git a/requirements/dev.txt b/requirements/dev.txt
index 19f50095..9c78c975 100644
--- a/requirements/dev.txt
+++ b/requirements/dev.txt
@@ -68,7 +68,7 @@ pallets-sphinx-themes==2.0.1
     # via -r requirements/docs.in
 pep517==0.11.0
     # via pip-tools
-pip-tools==6.3.0
+pip-tools==6.4.0
     # via -r requirements/dev.in
 platformdirs==2.4.0
     # via virtualenv