diff --git a/pkgs/servers/sql/mariadb/default.nix b/pkgs/servers/sql/mariadb/default.nix
index e407ba922227..90372142704b 100644
--- a/pkgs/servers/sql/mariadb/default.nix
+++ b/pkgs/servers/sql/mariadb/default.nix
@@ -5,11 +5,11 @@
 with stdenv.lib;
 stdenv.mkDerivation rec {
   name = "mariadb-${version}";
-  version = "10.0.20";
+  version = "10.0.21";
 
   src = fetchurl {
     url    = "https://downloads.mariadb.org/interstitial/mariadb-${version}/source/mariadb-${version}.tar.gz";
-    sha256 = "0ywb730l68mxvmpik1x2ndbdaaks6dmc17pxspspm5wlqxinjkrs";
+    sha256 = "0i9mzbn35f4lj4y1lqzgbavh5xyx18zfn0ks0nqzvppabkhk56jb";
   };
 
   buildInputs = [ cmake ncurses openssl zlib pcre libxml2 boost judy bison libevent ]