diff --git a/db/migrations/2020_12_28_000000_oauth_set_identifier_binary.php b/db/migrations/2020_12_28_000000_oauth_set_identifier_binary.php
new file mode 100644
index 00000000..9dab8d31
--- /dev/null
+++ b/db/migrations/2020_12_28_000000_oauth_set_identifier_binary.php
@@ -0,0 +1,53 @@
+<?php
+
+namespace Engelsystem\Migrations;
+
+use Engelsystem\Database\Migration\Migration;
+use Illuminate\Database\Query\Grammars\MySqlGrammar;
+
+class OauthSetIdentifierBinary extends Migration
+{
+    use Reference;
+
+    /**
+     * Run the migration
+     */
+    public function up()
+    {
+        $connection = $this->schema->getConnection();
+        if (!$connection->getQueryGrammar() instanceof MySqlGrammar) {
+            return;
+        }
+
+        $connection->unprepared(
+            '
+            ALTER TABLE `oauth`
+                CHANGE `identifier`
+                    `identifier`
+                    VARCHAR(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_bin
+                    NOT NULL
+            '
+        );
+    }
+
+    /**
+     * Reverse the migration
+     */
+    public function down()
+    {
+        $connection = $this->schema->getConnection();
+        if (!$connection->getQueryGrammar() instanceof MySqlGrammar) {
+            return;
+        }
+
+        $connection->unprepared(
+            '
+            ALTER TABLE `oauth`
+                CHANGE `identifier`
+                    `identifier`
+                    VARCHAR(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci
+                    NOT NULL
+            '
+        );
+    }
+}
diff --git a/db/migrations/2020_12_28_000001_oauth_change_tokens_to_text.php b/db/migrations/2020_12_28_000001_oauth_change_tokens_to_text.php
new file mode 100644
index 00000000..e640d613
--- /dev/null
+++ b/db/migrations/2020_12_28_000001_oauth_change_tokens_to_text.php
@@ -0,0 +1,39 @@
+<?php
+
+namespace Engelsystem\Migrations;
+
+use Engelsystem\Database\Migration\Migration;
+use Illuminate\Database\Schema\Blueprint;
+
+class OauthChangeTokensToText extends Migration
+{
+    use Reference;
+
+    /**
+     * Run the migration
+     */
+    public function up()
+    {
+        $this->schema->table(
+            'oauth',
+            function (Blueprint $table) {
+                $table->text('access_token')->change();
+                $table->text('refresh_token')->change();
+            }
+        );
+    }
+
+    /**
+     * Reverse the migration
+     */
+    public function down()
+    {
+        $this->schema->table(
+            'oauth',
+            function (Blueprint $table) {
+                $table->string('access_token')->change();
+                $table->string('refresh_token')->change();
+            }
+        );
+    }
+}
diff --git a/tests/Unit/HasDatabase.php b/tests/Unit/HasDatabase.php
index 0be90bf6..584d6c23 100644
--- a/tests/Unit/HasDatabase.php
+++ b/tests/Unit/HasDatabase.php
@@ -48,6 +48,7 @@ trait HasDatabase
                     ['migration' => '2019_09_07_000000_migrate_admin_schedule_permissions'],
                     ['migration' => '2020_04_07_000000_change_mysql_database_encoding_to_utf8mb4'],
                     ['migration' => '2020_09_12_000000_create_welcome_angel_permissions_group'],
+                    ['migration' => '2020_12_28_000000_oauth_set_identifier_binary'],
                 ]
             );