diff --git a/pkgs/servers/sql/mysql/5.5.x.nix b/pkgs/servers/sql/mysql/5.5.x.nix
index a714585c289..29c82bfd1ff 100644
--- a/pkgs/servers/sql/mysql/5.5.x.nix
+++ b/pkgs/servers/sql/mysql/5.5.x.nix
@@ -5,11 +5,11 @@
 
 stdenv.mkDerivation rec {
   name = "mysql-${version}";
-  version = "5.5.49";
+  version = "5.5.50";
 
   src = fetchurl {
     url = "mirror://mysql/MySQL-5.5/${name}.tar.gz";
-    sha256 = "07wy1qbxf3fxgi04v6cqs4ymi9hgsgabk218bxiwlsx706ds976d";
+    sha256 = "0lgr6badwnwbrzm6sbll4a25m02xfy85v4q6q0rq5cdjn745bb2y";
   };
 
   patches = if stdenv.isCygwin then [