diff --git a/bbf/Makefile b/bbf/Makefile
index 7a31aab7a..aa95fb2e7 100644
--- a/bbf/Makefile
+++ b/bbf/Makefile
@@ -5,11 +5,11 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=libbbfdm
-PKG_VERSION:=6.6.20
+PKG_VERSION:=6.6.21
 PKG_FIXUP:=autoreconf
 PKG_SOURCE_URL:=https://dev.iopsys.eu/iopsys/bbf.git
 PKG_SOURCE_PROTO:=git
-PKG_SOURCE_VERSION:=491a8b0c00680ba110fb42d17a51627365b1baed
+PKG_SOURCE_VERSION:=5b4eaf90acabbfb5b05670c5ff3c4401672d5456
 PKG_RELEASE=$(PKG_SOURCE_VERSION)
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION)-$(PKG_SOURCE_VERSION).tar.gz
 PKG_MIRROR_HASH:=skip