diff --git a/src/ifcopenshell-python/Makefile b/src/ifcopenshell-python/Makefile
index 350808ec25..3f86912ab1 100644
--- a/src/ifcopenshell-python/Makefile
+++ b/src/ifcopenshell-python/Makefile
@@ -55,7 +55,7 @@ PLATFORMTAG:=win_amd64
 endif
 
 BINARY_VERSION:=0.8.6
-BUILD_COMMIT:=3e7b739
+BUILD_COMMIT:=821cf7b
 IOS_URL:=https://s3.amazonaws.com/ifcopenshell-builds/ifcopenshell-python-$(PYNUMBER)-v$(BINARY_VERSION)-$(BUILD_COMMIT)-$(PLATFORM).zip
 IFCCONVERT_URL:=https://s3.amazonaws.com/ifcopenshell-builds/IfcConvert-v$(BINARY_VERSION)-$(BUILD_COMMIT)-$(PLATFORM).zip