diff --git a/pkgs/servers/memcached/default.nix b/pkgs/servers/memcached/default.nix
index 9790df9ce765..dc66c710a5d4 100644
--- a/pkgs/servers/memcached/default.nix
+++ b/pkgs/servers/memcached/default.nix
@@ -1,12 +1,12 @@
 {stdenv, fetchurl, cyrus_sasl, libevent}:
 
 stdenv.mkDerivation rec {
-  version = "1.5.10";
+  version = "1.5.11";
   name = "memcached-${version}";
 
   src = fetchurl {
     url = "https://memcached.org/files/${name}.tar.gz";
-    sha256 = "0jqw3z0408yx0lzc6ykn4d29n02dk31kqnmq9b3ldmcnpl6hck29";
+    sha256 = "0ajql8qs3w1lpw41vxkq2xabkxmmdk2nwg3i4lkclraq8pw92yk9";
   };
 
   buildInputs = [cyrus_sasl libevent];