diff --git a/pkgs/misc/screensavers/slock/default.nix b/pkgs/misc/screensavers/slock/default.nix
index acd8aa699053..b33ca25fb107 100644
--- a/pkgs/misc/screensavers/slock/default.nix
+++ b/pkgs/misc/screensavers/slock/default.nix
@@ -1,9 +1,9 @@
 { stdenv, fetchurl, xproto, libX11, libXext }:
 stdenv.mkDerivation rec {
-  name = "slock-0.9";
+  name = "slock-1.0";
   src = fetchurl {
     url = "http://dl.suckless.org/tools/${name}.tar.gz";
-    sha256 = "1gfp2ic2i63yz8wrf5cqzv9g422j9qs249y7g4chq0brpcybgpc9";
+    sha256 = "b4e44ff1660f6f7eb270a0575d6ae1e0fbffcf0cdd96860a1695d57e89ae2df9";
   };
   buildInputs = [ xproto libX11 libXext	];
   installFlags = "DESTDIR=\${out} PREFIX=";