diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8f034cd0..5376959a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,23 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](https://keepachangelog.com), and this project adheres to [Semantic Versioning](https://semver.org).
 
+## [Unreleased]
+### Added
+* *Nothing*
+
+### Changed
+* *Nothing*
+
+### Deprecated
+* *Nothing*
+
+### Removed
+* *Nothing*
+
+### Fixed
+* [#968](https://github.com/shlinkio/shlink/issues/968) Fixed index error in MariaDB while updating to v2.5.0.
+
+
 ## [2.5.0] - 2021-01-17
 ### Added
 * [#795](https://github.com/shlinkio/shlink/issues/795) and [#882](https://github.com/shlinkio/shlink/issues/882) Added new roles system to API keys.
diff --git a/data/migrations/Version20210102174433.php b/data/migrations/Version20210102174433.php
index 95ee62fe..835fcbda 100644
--- a/data/migrations/Version20210102174433.php
+++ b/data/migrations/Version20210102174433.php
@@ -25,7 +25,7 @@ final class Version20210102174433 extends AbstractMigration
         $table->setPrimaryKey(['id']);
 
         $table->addColumn('role_name', Types::STRING, [
-            'length' => 256,
+            'length' => 255,
             'notnull' => true,
         ]);
         $table->addColumn('meta', Types::JSON, [
diff --git a/data/migrations/Version20210118153932.php b/data/migrations/Version20210118153932.php
new file mode 100644
index 00000000..e17ff533
--- /dev/null
+++ b/data/migrations/Version20210118153932.php
@@ -0,0 +1,26 @@
+<?php
+
+declare(strict_types=1);
+
+namespace ShlinkMigrations;
+
+use Doctrine\DBAL\Schema\Schema;
+use Doctrine\Migrations\AbstractMigration;
+
+final class Version20210118153932 extends AbstractMigration
+{
+    public function up(Schema $schema): void
+    {
+        // Prev migration used to set the length to 256, which made some set-ups crash
+        // It has been updated to 255, and this migration ensures whoever managed to run the prev one, gets the value
+        // also updated to 255
+
+        $rolesTable = $schema->getTable('api_key_roles');
+        $nameColumn = $rolesTable->getColumn('role_name');
+        $nameColumn->setLength(255);
+    }
+
+    public function down(Schema $schema): void
+    {
+    }
+}
diff --git a/module/Rest/config/entities-mappings/Shlinkio.Shlink.Rest.Entity.ApiKeyRole.php b/module/Rest/config/entities-mappings/Shlinkio.Shlink.Rest.Entity.ApiKeyRole.php
index 9c6355e3..b7787b1a 100644
--- a/module/Rest/config/entities-mappings/Shlinkio.Shlink.Rest.Entity.ApiKeyRole.php
+++ b/module/Rest/config/entities-mappings/Shlinkio.Shlink.Rest.Entity.ApiKeyRole.php
@@ -24,7 +24,7 @@ return static function (ClassMetadata $metadata, array $emConfig): void {
 
     $builder->createField('roleName', Types::STRING)
             ->columnName('role_name')
-            ->length(256)
+            ->length(255)
             ->nullable(false)
             ->build();