diff --git a/target/linux/aruba-2.6/Makefile b/target/linux/aruba-2.6/Makefile
index 3c0c93eea..24330c08f 100644
--- a/target/linux/aruba-2.6/Makefile
+++ b/target/linux/aruba-2.6/Makefile
@@ -1,8 +1,8 @@
 include $(TOPDIR)/rules.mk
 
-LINUX_VERSION:=2.6.16.3
+LINUX_VERSION:=2.6.16.4
 LINUX_RELEASE:=1
-LINUX_KERNEL_MD5SUM:=e8e3f458c72671d8ac041c10b49e2b3f
+LINUX_KERNEL_MD5SUM:=cb675279c9711237a06ebb8379a4da27
 
 include ../rules.mk
 include ./config
diff --git a/target/linux/au1000-2.6/Makefile b/target/linux/au1000-2.6/Makefile
index 67a97acc8..ff84f664a 100644
--- a/target/linux/au1000-2.6/Makefile
+++ b/target/linux/au1000-2.6/Makefile
@@ -1,8 +1,8 @@
 include $(TOPDIR)/rules.mk
 
-LINUX_VERSION:=2.6.16.3
+LINUX_VERSION:=2.6.16.4
 LINUX_RELEASE:=1
-LINUX_KERNEL_MD5SUM:=e8e3f458c72671d8ac041c10b49e2b3f
+LINUX_KERNEL_MD5SUM:=cb675279c9711237a06ebb8379a4da27
 
 include ../rules.mk
 include ./config
diff --git a/target/linux/brcm-2.6/Makefile b/target/linux/brcm-2.6/Makefile
index 978707348..9f99fbd63 100644
--- a/target/linux/brcm-2.6/Makefile
+++ b/target/linux/brcm-2.6/Makefile
@@ -1,8 +1,8 @@
 include $(TOPDIR)/rules.mk
 
-LINUX_VERSION:=2.6.16.3
+LINUX_VERSION:=2.6.16.4
 LINUX_RELEASE:=1
-LINUX_KERNEL_MD5SUM:=e8e3f458c72671d8ac041c10b49e2b3f
+LINUX_KERNEL_MD5SUM:=cb675279c9711237a06ebb8379a4da27
 
 include ../rules.mk
 include ./config
diff --git a/target/linux/x86-2.6/Makefile b/target/linux/x86-2.6/Makefile
index d8ecd1306..d7be454c6 100644
--- a/target/linux/x86-2.6/Makefile
+++ b/target/linux/x86-2.6/Makefile
@@ -1,8 +1,8 @@
 include $(TOPDIR)/rules.mk
 
-LINUX_VERSION:=2.6.16.3
+LINUX_VERSION:=2.6.16.4
 LINUX_RELEASE:=1
-LINUX_KERNEL_MD5SUM:=e8e3f458c72671d8ac041c10b49e2b3f
+LINUX_KERNEL_MD5SUM:=cb675279c9711237a06ebb8379a4da27
 
 include ../rules.mk
 include ./config