diff --git a/auto_submit/pubspec.yaml b/auto_submit/pubspec.yaml
index 9a3faac32..a846019c0 100644
--- a/auto_submit/pubspec.yaml
+++ b/auto_submit/pubspec.yaml
@@ -27,7 +27,7 @@ dependencies:
   crypto: 3.0.6
   logging: 1.2.0
   retry: 3.1.2
-  yaml: 3.1.2
+  yaml: 3.1.3
   mutex: 3.1.0
   cocoon_server:
     path: ../cocoon_server