diff --git a/src/ifcopenshell-python/ifcopenshell/simple_spf b/src/ifcopenshell-python/ifcopenshell/simple_spf
index 30317826f8..ed50b756c4 160000
--- a/src/ifcopenshell-python/ifcopenshell/simple_spf
+++ b/src/ifcopenshell-python/ifcopenshell/simple_spf
@@ -1 +1 @@
-Subproject commit 30317826f8f743860ecff9e183699296593e42cb
+Subproject commit ed50b756c4035290d50eb2d928f89423f3aa0947