diff --git a/package/memcached/memcached.hash b/package/memcached/memcached.hash
new file mode 100644
index 000000000..7acbaf41f
--- /dev/null
+++ b/package/memcached/memcached.hash
@@ -0,0 +1,2 @@
+# From http://www.memcached.org/files/memcached-1.4.21.tar.gz.sha1
+sha1	ab10c46dd9f5d4401872d9670e575afa5bc7d66f	memcached-1.4.21.tar.gz
diff --git a/package/memcached/memcached.mk b/package/memcached/memcached.mk
index 4efe0935b..c057d57a7 100644
--- a/package/memcached/memcached.mk
+++ b/package/memcached/memcached.mk
@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-MEMCACHED_VERSION = 1.4.20
+MEMCACHED_VERSION = 1.4.21
 MEMCACHED_SITE = http://www.memcached.org/files
 MEMCACHED_DEPENDENCIES = libevent
 MEMCACHED_CONF_ENV = ac_cv_prog_cc_c99='-std=gnu99'