diff --git a/pkgs/misc/screensavers/xlockmore/default.nix b/pkgs/misc/screensavers/xlockmore/default.nix
index 47c3c67366e..c3cfbaf23b3 100644
--- a/pkgs/misc/screensavers/xlockmore/default.nix
+++ b/pkgs/misc/screensavers/xlockmore/default.nix
@@ -2,11 +2,11 @@
 , libXdmcp, libXt }:
 
 stdenv.mkDerivation rec {
-  name = "xlockmore-5.56";
+  name = "xlockmore-5.57";
 
   src = fetchurl {
     url = "http://sillycycle.com/xlock/${name}.tar.xz";
-    sha256 = "1dg1n79rnswhxqz36mxnl5lp8p37i9fbibnzzyrqknmvf2s8xpd0";
+    sha256 = "18r8rh8fzdn9miicbpc3qbdd4mm2g1jpsbcvj29sr66pxydzkb7r";
     curlOpts = "--user-agent 'Mozilla/5.0'";
   };