diff --git a/tools/buildman/requirements.txt b/tools/buildman/requirements.txt
index a1efcb9..4a31e69 100644
--- a/tools/buildman/requirements.txt
+++ b/tools/buildman/requirements.txt
@@ -1,2 +1,3 @@
 jsonschema==4.17.3
 pyyaml==6.0
+yamllint==1.26.3