diff --git a/src/bonsai/Makefile b/src/bonsai/Makefile
index daa8fe4ea7..5bc39cbd84 100644
--- a/src/bonsai/Makefile
+++ b/src/bonsai/Makefile
@@ -87,7 +87,7 @@ BLENDER_PLATFORM:=windows-x64
 endif
 
 # Current build commit hash.
-OLD:=ec13294
+OLD:=358395c
 .PHONY: bump
 bump:
 ifndef NEW
diff --git a/src/ifcopenshell-python/Makefile b/src/ifcopenshell-python/Makefile
index cac50969b9..25c8103cf8 100644
--- a/src/ifcopenshell-python/Makefile
+++ b/src/ifcopenshell-python/Makefile
@@ -62,8 +62,8 @@ ifeq ($(PLATFORM), win64)
 PLATFORMTAG:=win_amd64
 endif
 
-IOS_URL:=https://s3.amazonaws.com/ifcopenshell-builds/ifcopenshell-python-$(PYNUMBER)-v0.8.3-ec13294-$(PLATFORM).zip
-IFCCONVERT_URL:=https://s3.amazonaws.com/ifcopenshell-builds/IfcConvert-v0.8.3-ec13294-$(PLATFORM).zip
+IOS_URL:=https://s3.amazonaws.com/ifcopenshell-builds/ifcopenshell-python-$(PYNUMBER)-v0.8.3-358395c-$(PLATFORM).zip
+IFCCONVERT_URL:=https://s3.amazonaws.com/ifcopenshell-builds/IfcConvert-v0.8.3-358395c-$(PLATFORM).zip
 
 .PHONY: build-urls
 build-urls: