diff --git a/python/ufl b/python/ufl
index 77c777c16707a318d78f72c58470a15687701e75..51edbb951d99d5e431aaf5abe85a48763473c939 160000
--- a/python/ufl
+++ b/python/ufl
@@ -1 +1 @@
-Subproject commit 77c777c16707a318d78f72c58470a15687701e75
+Subproject commit 51edbb951d99d5e431aaf5abe85a48763473c939