diff --git a/package/network/utils/iptables/Makefile b/package/network/utils/iptables/Makefile
index 35dda06d9c..50b1754c51 100644
--- a/package/network/utils/iptables/Makefile
+++ b/package/network/utils/iptables/Makefile
@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 include $(INCLUDE_DIR)/kernel.mk
 
 PKG_NAME:=iptables
-PKG_VERSION:=1.4.20
+PKG_VERSION:=1.4.21
 PKG_RELEASE:=1
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.bz2
@@ -17,7 +17,7 @@ PKG_SOURCE_URL:=http://www.netfilter.org/projects/iptables/files \
 	ftp://ftp.be.netfilter.org/pub/netfilter/iptables/ \
 	ftp://ftp.de.netfilter.org/pub/netfilter/iptables/ \
 	ftp://ftp.no.netfilter.org/pub/netfilter/iptables/
-PKG_MD5SUM:=387b92d3efcf4f07fe31c3bf0f1d18f5
+PKG_MD5SUM:=536d048c8e8eeebcd9757d0863ebb0c0
 
 PKG_FIXUP:=autoreconf
 PKG_INSTALL:=1