diff --git a/README.md b/README.md
index ce9ccac..2116657 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # dokku mysql [![Build Status](https://img.shields.io/travis/dokku/dokku-mysql.svg?branch=master "Build Status")](https://travis-ci.org/dokku/dokku-mysql) [![IRC Network](https://img.shields.io/badge/irc-freenode-blue.svg "IRC Freenode")](https://webchat.freenode.net/?channels=dokku)
 
-Official mysql plugin for dokku. Currently defaults to installing [mysql 5.7.26](https://hub.docker.com/_/mysql/).
+Official mysql plugin for dokku. Currently defaults to installing [mysql 5.7.28](https://hub.docker.com/_/mysql/).
 
 ## requirements
 
diff --git a/config b/config
index d3b4638..ef220ff 100644
--- a/config
+++ b/config
@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 export MYSQL_IMAGE=${MYSQL_IMAGE:="mysql"}
-export MYSQL_IMAGE_VERSION=${MYSQL_IMAGE_VERSION:="5.7.26"}
+export MYSQL_IMAGE_VERSION=${MYSQL_IMAGE_VERSION:="5.7.28"}
 export MYSQL_ROOT=${MYSQL_ROOT:="$DOKKU_LIB_ROOT/services/mysql"}
 export MYSQL_HOST_ROOT=${MYSQL_HOST_ROOT:=$MYSQL_ROOT}
 
diff --git a/tests/service_list.bats b/tests/service_list.bats
index f42a9c7..2350809 100755
--- a/tests/service_list.bats
+++ b/tests/service_list.bats
@@ -11,20 +11,20 @@ teardown() {
 
 @test "($PLUGIN_COMMAND_PREFIX:list) with no exposed ports, no linked apps" {
   run dokku "$PLUGIN_COMMAND_PREFIX:list"
-  assert_contains "${lines[*]}" "l     mysql:5.7.26  running  -              -"
+  assert_contains "${lines[*]}" "l     mysql:5.7.28  running  -              -"
 }
 
 @test "($PLUGIN_COMMAND_PREFIX:list) with exposed ports" {
   dokku "$PLUGIN_COMMAND_PREFIX:expose" l 4242
   run dokku "$PLUGIN_COMMAND_PREFIX:list"
-  assert_contains "${lines[*]}" "l     mysql:5.7.26  running  3306->4242     -"
+  assert_contains "${lines[*]}" "l     mysql:5.7.28  running  3306->4242     -"
 }
 
 @test "($PLUGIN_COMMAND_PREFIX:list) with linked app" {
   dokku apps:create my_app
   dokku "$PLUGIN_COMMAND_PREFIX:link" l my_app
   run dokku "$PLUGIN_COMMAND_PREFIX:list"
-  assert_contains "${lines[*]}" "l     mysql:5.7.26  running  -              my_app"
+  assert_contains "${lines[*]}" "l     mysql:5.7.28  running  -              my_app"
   dokku --force apps:destroy my_app
 }