diff --git a/src/bonsai/Makefile b/src/bonsai/Makefile
index c8fa55d611..a7ad6036cc 100644
--- a/src/bonsai/Makefile
+++ b/src/bonsai/Makefile
@@ -93,7 +93,7 @@ endif
 endif # def PLATFORM
 
 # Current build commit hash.
-OLD:=3e7b739
+OLD:=ad113e1
 .PHONY: bump
 bump:
 ifndef NEW
diff --git a/src/ifcopenshell-python/Makefile b/src/ifcopenshell-python/Makefile
index 2b25fac23f..2ef6c74b00 100644
--- a/src/ifcopenshell-python/Makefile
+++ b/src/ifcopenshell-python/Makefile
@@ -57,8 +57,8 @@ ifeq ($(PLATFORM), win64)
 PLATFORMTAG:=win_amd64
 endif
 
-BINARY_VERSION:=0.8.6
-BUILD_COMMIT:=e333c1c
+BINARY_VERSION:=0.9.0alpha0
+BUILD_COMMIT:=ad113e1
 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