diff --git a/pkgs/development/libraries/unixODBCDrivers/default.nix b/pkgs/development/libraries/unixODBCDrivers/default.nix
index d1b52fc5694c..ad6db095b753 100644
--- a/pkgs/development/libraries/unixODBCDrivers/default.nix
+++ b/pkgs/development/libraries/unixODBCDrivers/default.nix
@@ -43,13 +43,13 @@
 
   mariadb = stdenv.mkDerivation rec {
     pname = "mariadb-connector-odbc";
-    version = "3.1.14";
+    version = "3.1.20";
 
     src = fetchFromGitHub {
       owner = "mariadb-corporation";
       repo = "mariadb-connector-odbc";
       rev = version;
-      sha256 = "0wvy6m9qfvjii3kanf2d1rhfaww32kg0d7m57643f79qb05gd6vg";
+      hash = "sha256-l+HlS7/A0shwsEXYKDhi+QCmwHaMTeKrtcvo9yYpYws=";
       # this driver only seems to build correctly when built against the mariadb-connect-c subrepo
       # (see https://github.com/NixOS/nixpkgs/issues/73258)
       fetchSubmodules = true;