diff --git a/skeema/gradido_login/elopage_buys.sql b/skeema/gradido_login/elopage_buys.sql
index 2f30e6eff..be3464846 100644
--- a/skeema/gradido_login/elopage_buys.sql
+++ b/skeema/gradido_login/elopage_buys.sql
@@ -1,15 +1,15 @@
 CREATE TABLE `elopage_buys` (
-  `id` int(11) NOT NULL AUTO_INCREMENT,
-  `elopage_user_id` int(11) NOT NULL,
-  `affiliate_program_id` int(11) NOT NULL,
-  `publisher_id` int(11) NOT NULL,
-  `order_id` int(11) NOT NULL,
-  `product_id` int(11) NOT NULL,
-  `product_price` int(11) NOT NULL,
+  `id` int UNSIGNED NOT NULL AUTO_INCREMENT,
+  `elopage_user_id` int NOT NULL,
+  `affiliate_program_id` int NOT NULL,
+  `publisher_id` int NOT NULL,
+  `order_id` int NOT NULL,
+  `product_id` int NOT NULL,
+  `product_price` int NOT NULL,
   `payer_email` varchar(255) COLLATE utf8_bin NOT NULL,
   `publisher_email` varchar(255) COLLATE utf8_bin NOT NULL,
-  `payed` tinyint(1) NOT NULL,
+  `payed` tinyint NOT NULL,
   `success_date` datetime NOT NULL,
   `event` varchar(255) CHARACTER SET utf8mb4 NOT NULL,
   PRIMARY KEY (`id`)
-) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_bin;
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
diff --git a/skeema/gradido_login/email_opt_in.sql b/skeema/gradido_login/email_opt_in.sql
index 172c4c318..1589093e8 100644
--- a/skeema/gradido_login/email_opt_in.sql
+++ b/skeema/gradido_login/email_opt_in.sql
@@ -1,11 +1,11 @@
 CREATE TABLE `email_opt_in` (
-  `id` int(11) NOT NULL AUTO_INCREMENT,
-  `user_id` int(11) NOT NULL,
-  `verification_code` bigint(25) unsigned NOT NULL,
-  `email_opt_in_type_id` int(11) NOT NULL,
+  `id` int UNSIGNED  NOT NULL AUTO_INCREMENT,
+  `user_id` int NOT NULL,
+  `verification_code` bigint unsigned NOT NULL,
+  `email_opt_in_type_id` int NOT NULL,
   `created` datetime NOT NULL DEFAULT current_timestamp(),
-  `resend_count` int(11) DEFAULT 0,
+  `resend_count` int DEFAULT 0,
   `updated` DATETIME on update CURRENT_TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
   PRIMARY KEY (`id`),
   UNIQUE KEY `verification_code` (`verification_code`)
-) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_bin;
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
diff --git a/skeema/gradido_login/email_opt_in_types.sql b/skeema/gradido_login/email_opt_in_types.sql
index 049d1ad71..f46275727 100644
--- a/skeema/gradido_login/email_opt_in_types.sql
+++ b/skeema/gradido_login/email_opt_in_types.sql
@@ -1,5 +1,5 @@
 CREATE TABLE `email_opt_in_types` (
-  `id` int(11) NOT NULL AUTO_INCREMENT,
+  `id` int UNSIGNED NOT NULL AUTO_INCREMENT,
   `name` varchar(255) NOT NULL,
   `description` varchar(255) NOT NULL,
   PRIMARY KEY (`id`)
diff --git a/skeema/gradido_login/roles.sql b/skeema/gradido_login/roles.sql
index 0fee867bd..b9d51dd11 100644
--- a/skeema/gradido_login/roles.sql
+++ b/skeema/gradido_login/roles.sql
@@ -1,7 +1,7 @@
 CREATE TABLE `roles` (
-  `id` int(11) NOT NULL AUTO_INCREMENT,
+  `id` int UNSIGNED  NOT NULL AUTO_INCREMENT,
   `name` varchar(255) NOT NULL,
   `description` varchar(255) NOT NULL,
-  `flags` bigint(20) NOT NULL DEFAULT 0,
+  `flags` bigint NOT NULL DEFAULT 0,
   PRIMARY KEY (`id`)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
diff --git a/skeema/gradido_login/user_backups.sql b/skeema/gradido_login/user_backups.sql
index fa508d21f..699c9a2c6 100644
--- a/skeema/gradido_login/user_backups.sql
+++ b/skeema/gradido_login/user_backups.sql
@@ -1,7 +1,7 @@
 CREATE TABLE `user_backups` (
-  `id` int(11) NOT NULL AUTO_INCREMENT,
-  `user_id` int(11) NOT NULL,
-  `passphrase` text COLLATE utf8_bin NOT NULL,
-  `mnemonic_type` int(11) DEFAULT '-1',
+  `id` int UNSIGNED NOT NULL AUTO_INCREMENT,
+  `user_id` int NOT NULL,
+  `passphrase` text NOT NULL,
+  `mnemonic_type` int DEFAULT '-1',
   PRIMARY KEY (`id`)
-) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_bin;
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
diff --git a/skeema/gradido_login/user_roles.sql b/skeema/gradido_login/user_roles.sql
index 5856ea853..ac9f0834c 100644
--- a/skeema/gradido_login/user_roles.sql
+++ b/skeema/gradido_login/user_roles.sql
@@ -1,6 +1,6 @@
 CREATE TABLE `user_roles` (
-  `id` int(11) NOT NULL AUTO_INCREMENT,
-  `user_id` int(11) NOT NULL,
-  `role_id` int(11) NOT NULL,
+  `id` int UNSIGNED NOT NULL AUTO_INCREMENT,
+  `user_id` int NOT NULL,
+  `role_id` int NOT NULL,
   PRIMARY KEY (`id`)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
diff --git a/skeema/gradido_login/users.sql b/skeema/gradido_login/users.sql
index e010af2ad..172f34b56 100644
--- a/skeema/gradido_login/users.sql
+++ b/skeema/gradido_login/users.sql
@@ -1,16 +1,16 @@
 CREATE TABLE `users` (
-  `id` int(11) NOT NULL AUTO_INCREMENT,
-  `email` varchar(255) NOT NULL,
+  `id` int UNSIGNED NOT NULL AUTO_INCREMENT,
+  `email` varchar(191) NOT NULL,
   `first_name` varchar(150) NOT NULL,
   `last_name` varchar(255) DEFAULT '',
-  `password` bigint(25) unsigned NOT NULL,
+  `password` bigint unsigned NOT NULL,
   `pubkey` binary(32) DEFAULT NULL,
   `privkey` binary(80) DEFAULT NULL,
   `created` datetime NOT NULL DEFAULT current_timestamp(),
-  `email_checked` tinyint(1) NOT NULL DEFAULT 0,
-  `passphrase_shown` tinyint(1) NOT NULL DEFAULT 0,
-  `language` varchar(4) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL DEFAULT 'de',
+  `email_checked` tinyint NOT NULL DEFAULT 0,
+  `passphrase_shown` tinyint NOT NULL DEFAULT 0,
+  `language` varchar(4) NOT NULL DEFAULT 'de',
   `disabled` BOOLEAN NULL DEFAULT FALSE,
   PRIMARY KEY (`id`),
   UNIQUE KEY `email` (`email`)
-) ENGINE=InnoDB DEFAULT CHARSET=utf8;
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;