diff --git a/lib/zammad/application/initializer/db_preflight_check/mysql2.rb b/lib/zammad/application/initializer/db_preflight_check/mysql2.rb
index 52b242eae..f69cf0d4a 100644
--- a/lib/zammad/application/initializer/db_preflight_check/mysql2.rb
+++ b/lib/zammad/application/initializer/db_preflight_check/mysql2.rb
@@ -66,9 +66,9 @@ module Zammad
           def self.min_version
             case vendor
             when 'MySQL'
-              '5.6'
+              '5.7'
             when 'MariaDB'
-              '10.0'
+              '10.3'
             end
           end
 
diff --git a/lib/zammad/application/initializer/db_preflight_check/postgresql.rb b/lib/zammad/application/initializer/db_preflight_check/postgresql.rb
index 3f0bb193f..c321ad19c 100644
--- a/lib/zammad/application/initializer/db_preflight_check/postgresql.rb
+++ b/lib/zammad/application/initializer/db_preflight_check/postgresql.rb
@@ -58,7 +58,7 @@ module Zammad
           end
 
           def self.min_version
-            @min_version ||= '9.1'
+            @min_version ||= '9.3'
           end
 
           def self.vendor