diff --git a/python-flit-core b/python-flit-core
index 40d9dee..44009dd 160000
--- a/python-flit-core
+++ b/python-flit-core
@@ -1 +1 @@
-Subproject commit 40d9dee18658b150901d13f69dadfe9f81bba090
+Subproject commit 44009dd47d89c2e61554f35b124e64d334cd2b72