diff --git a/tools/serve_header/requirements.txt b/tools/serve_header/requirements.txt
index c399c52b4..0c6ce0d81 100644
--- a/tools/serve_header/requirements.txt
+++ b/tools/serve_header/requirements.txt
@@ -1,2 +1,2 @@
-PyYAML==6.0.2
+PyYAML==6.0.3
 watchdog==6.0.0