diff --git a/src/ifcopenshell-python/ifcopenshell/simple_spf b/src/ifcopenshell-python/ifcopenshell/simple_spf
index 4a56a2ba6e..2849a31788 160000
--- a/src/ifcopenshell-python/ifcopenshell/simple_spf
+++ b/src/ifcopenshell-python/ifcopenshell/simple_spf
@@ -1 +1 @@
-Subproject commit 4a56a2ba6e05a5c72451ae007e694d1ff2415955
+Subproject commit 2849a31788c4f82edca7d1b1046d0606fdf8b9be