diff --git a/pkgs/servers/sql/mariadb/connector-c/3_1.nix b/pkgs/servers/sql/mariadb/connector-c/3_1.nix
index 477d6113b7a4..40a00313639b 100644
--- a/pkgs/servers/sql/mariadb/connector-c/3_1.nix
+++ b/pkgs/servers/sql/mariadb/connector-c/3_1.nix
@@ -1,6 +1,6 @@
 { callPackage, ... } @ args:
 
 callPackage ./. (args // {
-  version = "3.1.12";
-  sha256 = "0qzyahr8x9l1xz0l79wz3iahxz7648n1azc5yr7kx0dl113y2nig";
+  version = "3.1.13";
+  sha256 = "0xb8fiissblxb319y5ifqqp86zblwis789ipb753pcb4zpnsaw82";
 })
diff --git a/pkgs/servers/sql/mariadb/default.nix b/pkgs/servers/sql/mariadb/default.nix
index db588b3abe01..59b55d620287 100644
--- a/pkgs/servers/sql/mariadb/default.nix
+++ b/pkgs/servers/sql/mariadb/default.nix
@@ -22,14 +22,14 @@ mariadb = server // {
 };
 
 common = rec { # attributes common to both builds
-  version = "10.5.10";
+  version = "10.5.11";
 
   src = fetchurl {
     urls = [
       "https://downloads.mariadb.org/f/mariadb-${version}/source/mariadb-${version}.tar.gz"
       "https://downloads.mariadb.com/MariaDB/mariadb-${version}/source/mariadb-${version}.tar.gz"
     ];
-    sha256 = "1fxsq2xgcb8j81z043bifpmxblj6nb3wqjm9rgsnpwmazkwk5zx5";
+    sha256 = "0yn4bhqciy6jyig31rmkjc588l03k4bj3194yf9y6373bxh5643n";
     name   = "mariadb-${version}.tar.gz";
   };