diff --git a/extern/aurora b/extern/aurora
index d8e41e4bc..b91c2739c 160000
--- a/extern/aurora
+++ b/extern/aurora
@@ -1 +1 @@
-Subproject commit d8e41e4bcc5fae7140f2854a8b0d51d950285804
+Subproject commit b91c2739c9bff672355daf3bf6daa4d8813a52ba