diff --git a/pkgs/servers/sql/mysql51/default.nix b/pkgs/servers/sql/mysql51/default.nix
index 64ffac0439b..b1dda007fef 100644
--- a/pkgs/servers/sql/mysql51/default.nix
+++ b/pkgs/servers/sql/mysql51/default.nix
@@ -3,11 +3,11 @@
 # Note: zlib is not required; MySQL can use an internal zlib.
 
 stdenv.mkDerivation {
-  name = "mysql-5.1.41";
+  name = "mysql-5.1.51";
 
   src = fetchurl {
-    url = ftp://mirror.leaseweb.com/mysql/Downloads/MySQL-5.1/mysql-5.1.41.tar.gz;
-    sha256 = "05mwinpq35iaglylw5n772vv2p1kxyni6f2hv081gxm58gdj3dsw";
+    url = ftp://mirror.leaseweb.com/mysql/Downloads/MySQL-5.1/mysql-5.1.51.tar.gz;
+    sha256 = "10i8ljsv7j1ggbqjmi7h6ahlgnaihh70z58n8rnl53065wi65n9r";
   };
 
   buildInputs = [ps ncurses zlib perl openssl];