diff --git a/src/ifcopenshell-python/ifcopenshell/simple_spf b/src/ifcopenshell-python/ifcopenshell/simple_spf
index 63a2b9144a..4a56a2ba6e 160000
--- a/src/ifcopenshell-python/ifcopenshell/simple_spf
+++ b/src/ifcopenshell-python/ifcopenshell/simple_spf
@@ -1 +1 @@
-Subproject commit 63a2b9144a45e18db30a00ea2de8be965a03e288
+Subproject commit 4a56a2ba6e05a5c72451ae007e694d1ff2415955