diff --git a/.env.example b/.env.example
index 47387c5..05ff73c 100644
--- a/.env.example
+++ b/.env.example
@@ -1,12 +1,13 @@
 TOKEN="BOT_TOKEN"
 GUILD_ID="1234567890"
-DB_DIALECT="mysql"
+
+DB_DIALECT="postgres"
 DB_HOST="localhost"
 DB_NAME="gachamelia"
-DB_USERNAME="gachamelia"
+DB_USERNAME="postgres"
 DB_PASSWORD="gachamelia"
-DB_PORT=3310
-SSR_ROLE=""
-SR_ROLE=""
-R_ROLE=""
-WELCOME_CHANNEL=""
\ No newline at end of file
+DB_PORT=5433
+
+WELCOME_CHANNEL=""
+
+INIT_DB="true"
\ No newline at end of file
diff --git a/docker-compose.yml b/docker-compose.yml
index a832151..e721dbb 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -1,15 +1,13 @@
 services:
-  mysql:
-    image: mysql:8
+  postgres:
+    image: postgres:17
     environment:
-      MYSQL_ROOT_PASSWORD: root
-      MYSQL_DATABASE: gachamelia
-      MYSQL_USER: gachamelia
-      MYSQL_PASSWORD: gachamelia
+      POSTGRES_PASSWORD: gachamelia
+      POSTGRES_DB: gachamelia
     ports:
-      - "3310:3306"
+      - "5433:5432"
     volumes:
-      - mysql_gachamelia_data:/var/lib/mysql
+      - postgres_gachamelia_data:/var/lib/postgresql/data
 
 volumes:
-  mysql_gachamelia_data:
\ No newline at end of file
+  postgres_gachamelia_data:
\ No newline at end of file
diff --git a/src/base/classes/CustomClient.ts b/src/base/classes/CustomClient.ts
index 213c194..40e2673 100644
--- a/src/base/classes/CustomClient.ts
+++ b/src/base/classes/CustomClient.ts
@@ -9,6 +9,7 @@ import {Database} from "./Database";
 import {IDatabaseConfig} from "../interfaces/IDatabaseConfig";
 import {Dialect} from "sequelize";
 import {User} from "../models/User";
+import {Rank} from "../models/Rank";
 
 export class CustomClient extends Client implements ICustomClient {
     config: IConfig;
@@ -47,7 +48,20 @@ export class CustomClient extends Client implements ICustomClient {
     }
     async init(): Promise<void> {
         await this.database.connect();
+
+        Rank.initModel(this.database.getSequelize());
         User.initModel(this.database.getSequelize());
+
+
+        Rank.hasMany(User, {
+            foreignKey: 'rankId',
+            as: 'users'
+        });
+        User.belongsTo(Rank, {
+            foreignKey: 'rankId',
+            as: 'rank'
+        });
+
         await this.database.sync({
             alter: true
         });
diff --git a/src/base/enums/Rank.ts b/src/base/enums/Rank.ts
deleted file mode 100644
index 3c1bf8d..0000000
--- a/src/base/enums/Rank.ts
+++ /dev/null
@@ -1,6 +0,0 @@
-export enum Rank {
-    SSR = 'SSR',
-    SR = 'SR',
-    R = 'R',
-}
-
diff --git a/src/base/enums/RankChance.ts b/src/base/enums/RankChance.ts
deleted file mode 100644
index 5909a24..0000000
--- a/src/base/enums/RankChance.ts
+++ /dev/null
@@ -1,6 +0,0 @@
-export enum RankChance {
-    SSR = 3,
-    SR = 17,
-    R = 80,
-}
-
diff --git a/src/base/models/Rank.ts b/src/base/models/Rank.ts
new file mode 100644
index 0000000..b423cde
--- /dev/null
+++ b/src/base/models/Rank.ts
@@ -0,0 +1,40 @@
+import { Model, DataTypes, Sequelize } from 'sequelize';
+import {User} from "./User";
+
+export class Rank extends Model {
+    declare id: number;
+    declare name: string;
+    declare discordId: string;
+    declare percentage: number;
+    declare createdAt: Date;
+    declare updatedAt: Date;
+    declare users: User[];
+
+    public static initModel(sequelize: Sequelize): void {
+        Rank.init({
+            id: {
+                type: DataTypes.INTEGER,
+                autoIncrement: true,
+                primaryKey: true
+            },
+            name: {
+                type: DataTypes.STRING,
+                allowNull: false
+            },
+            discordId: {
+                type: DataTypes.STRING,
+                allowNull: false,
+                unique: true
+            },
+            percentage: {
+                type: DataTypes.INTEGER,
+                allowNull: false
+            },
+            createdAt: DataTypes.DATE,
+            updatedAt: DataTypes.DATE,
+        }, {
+            sequelize,
+            tableName: 'ranks'
+        });
+    }
+}
\ No newline at end of file
diff --git a/src/base/models/User.ts b/src/base/models/User.ts
index 627f5d6..5bacc56 100644
--- a/src/base/models/User.ts
+++ b/src/base/models/User.ts
@@ -1,12 +1,22 @@
-import { Model, DataTypes, Sequelize } from 'sequelize';
-import { Rank } from '../enums/Rank';
+import {
+    Model,
+    DataTypes,
+    Sequelize,
+    ForeignKey,
+    NonAttribute,
+    InferAttributes, InferCreationAttributes, CreationOptional, Association
+} from 'sequelize';
+import {Rank} from "./Rank";
 
-export class User extends Model {
-    declare id: number;
+export class User extends Model<
+    InferAttributes<User>,
+    InferCreationAttributes<User>> {
+    declare id: CreationOptional<number>;
     declare discordId: string;
-    declare rank: Rank;
-    declare createdAt: Date;
-    declare updatedAt: Date;
+    declare rankId: ForeignKey<number>;
+    declare rank: NonAttribute<Rank>;
+    declare createdAt: CreationOptional<Date>;
+    declare updatedAt: CreationOptional<Date>;
 
     public static initModel(sequelize: Sequelize): void {
         User.init({
@@ -20,9 +30,13 @@ export class User extends Model {
                 allowNull: false,
                 unique: true
             },
-            rank: {
-                type: DataTypes.STRING,
-                allowNull: false
+            rankId: {
+                type: DataTypes.INTEGER,
+                allowNull: false,
+                references: {
+                    model: Rank,
+                    key: 'id'
+                }
             },
             createdAt: DataTypes.DATE,
             updatedAt: DataTypes.DATE
@@ -31,4 +45,10 @@ export class User extends Model {
             tableName: 'users'
         });
     }
+
+
+
+    declare static associations: {
+        rank: Association<User, Rank>;
+    };
 }
\ No newline at end of file
diff --git a/src/base/utils/GachaUtils.ts b/src/base/utils/GachaUtils.ts
index 6c6a8a9..b298e9c 100644
--- a/src/base/utils/GachaUtils.ts
+++ b/src/base/utils/GachaUtils.ts
@@ -1,33 +1,24 @@
 import {CustomClient} from "../classes/CustomClient";
 import {User} from "../models/User";
 import {getRandomRank} from "./RandomUtils";
-import {Rank} from "../enums/Rank";
 import {GuildMember} from "discord.js";
+import {Rank} from "../models/Rank";
 
-export async function addRole(member: GuildMember, user: User, client: CustomClient): Promise<void> {
+export async function addRole(member: GuildMember, user: User): Promise<void> {
     try {
-        let rRoleId = client.config.rRole;
-        let srRoleId = client.config.srRole;
-        let ssrRoleId =  client.config.ssrRole;
-
-        if (user.rank === Rank.R) {
-            const rRole = await member.guild.roles.fetch(rRoleId);
-
-            if (rRole) {
-                await member.roles.add(rRole);
+        let userRank = await Rank.findOne({
+            where: {
+                id: user.rankId
             }
-        } else if (user.rank === Rank.SR) {
-            const srRole = await member.guild.roles.fetch(srRoleId);
+        });
 
-            if (srRole) {
-                await member.roles.add(srRole);
-            }
-        } else if (user.rank === Rank.SSR) {
-            const ssrRole = await member.guild.roles.fetch(ssrRoleId);
+        if (!userRank) {
+            return;
+        }
 
-            if (ssrRole) {
-                await member.roles.add(ssrRole);
-            }
+        const discordRank = await member.guild.roles.fetch(userRank.discordId);
+        if (discordRank) {
+            await member.roles.add(userRank.discordId);
         }
     } catch (e: Error | any) {
         console.log(`Impossible d'ajouter les rôles à ${member.displayName}`);
@@ -43,16 +34,25 @@ export async function createAllUsers(client: CustomClient): Promise<void> {
         let user = await User.findOne({
             where: {
                 discordId: member.id
+            },
+            include: {
+                model: Rank,
+                as: 'rank'
             }
         })
 
         if (!user) {
             user = await User.create({
                 discordId: member.id,
-                rank: getRandomRank()
+                rankId: (await getRandomRank()).id
+            }, {
+                include: [{
+                    model: Rank,
+                    as: 'rank'
+                }]
             });
 
-            await addRole(member, user, client);
+            await addRole(member, user);
             
             count++;
         }
diff --git a/src/base/utils/RandomUtils.ts b/src/base/utils/RandomUtils.ts
index 7ae4db1..67bfa64 100644
--- a/src/base/utils/RandomUtils.ts
+++ b/src/base/utils/RandomUtils.ts
@@ -1,16 +1,20 @@
-import {Rank} from "../enums/Rank";
-import {RankChance} from "../enums/RankChance";
+import {Rank} from "../models/Rank";
 
-export function getRandomRank(): Rank {
+export async function getRandomRank(): Promise<Rank> {
     const rand = Math.random() * 100;
     let cumulativeChance = 0;
+    const ranks = await Rank.findAll();
 
-    for (const rank of Object.values(Rank)) {
-        cumulativeChance += RankChance[rank as keyof typeof RankChance];
+    if (ranks.length === 0) {
+        throw new Error('No ranks found');
+    }
+
+    for (const rank of ranks) {
+        cumulativeChance += rank.percentage;
         if (rand <= cumulativeChance) {
             return rank as Rank;
         }
     }
 
-    return Rank.R;
+    return ranks[0] as Rank;
 }
\ No newline at end of file
diff --git a/src/commands/RankCommand.ts b/src/commands/RankCommand.ts
index 6fe81cc..32f2f16 100644
--- a/src/commands/RankCommand.ts
+++ b/src/commands/RankCommand.ts
@@ -3,7 +3,7 @@ import {CustomClient} from "../base/classes/CustomClient";
 import {Category} from "../base/enums/Category";
 import {EmbedBuilder, GuildMember, PermissionsBitField, SlashCommandUserOption} from "discord.js";
 import {User} from "../base/models/User";
-import {Rank} from "../base/enums/Rank";
+import {Rank} from "../base/models/Rank";
 import {getRandomRank} from "../base/utils/RandomUtils";
 
 export class PingCommand extends Command {
@@ -26,19 +26,23 @@ export class PingCommand extends Command {
 
     async execute(interaction: any): Promise<void> {
         let discordUser = (interaction.options.getMember('user') || interaction.member) as GuildMember;
-        console.log(discordUser.id);
+
         let user = await User.findOne(
             {
                 where: {
                     discordId: discordUser.id
-                }
+                },
+                include: [{
+                    model: Rank,
+                    as: 'rank'
+                }],
             }
         );
 
         if (!user) {
             user = await User.create({
                 discordId: discordUser.id,
-                rank: getRandomRank()
+                rankId: (await getRandomRank()).id
             });
         }
 
@@ -46,7 +50,7 @@ export class PingCommand extends Command {
         let embed = new EmbedBuilder()
             .setTitle(`Rang de ${discordUser.displayName}`)
             .setThumbnail(discordUser.displayAvatarURL())
-            .setDescription(`Cet utilisateur est de rang : ${Rank[user.rank]}`)
+            .setDescription(`Cet utilisateur est de rang : ${user.rank.name}`)
             .setTimestamp(new Date())
             .setColor('#0078DE')
         ;
diff --git a/src/events/client/Ready.ts b/src/events/client/Ready.ts
index 5b68d4e..aac1f03 100644
--- a/src/events/client/Ready.ts
+++ b/src/events/client/Ready.ts
@@ -3,6 +3,7 @@ import {CustomClient} from "../../base/classes/CustomClient";
 import {Collection, Events, REST, Routes} from "discord.js";
 import {Command} from "../../base/classes/Command";
 import {createAllUsers} from "../../base/utils/GachaUtils";
+import {Rank} from "../../base/models/Rank";
 export class Ready extends Event {
     constructor(client: CustomClient) {
         super(client, {
@@ -29,7 +30,11 @@ export class Ready extends Event {
 
         console.log(`${setCommands.length} Commandes mises à jours avec succès !`);
 
-        await createAllUsers(this.client);
+        if (process.env.INIT_DB === 'true') {
+            await this.initDb();
+        } else {
+            await createAllUsers(this.client);
+        }
     }
 
     private getJson(commands: Collection<string, Command>): object[] {
@@ -47,4 +52,38 @@ export class Ready extends Event {
 
         return data;
     }
+
+    private async initDb() {
+        // On commence par vérifier si les rangs existent déjà
+        const ranks = await Rank.findAll();
+        if (ranks.length > 0) {
+            return;
+        }
+
+        await Rank.create({
+            name: '1★',
+            discordId: '1234567890',
+            percentage: 1,
+        });
+        await Rank.create({
+            name: '2★',
+            discordId: '2345678901',
+            percentage: 48,
+        });
+        await Rank.create({
+            name: '3★',
+            discordId: '3456789012',
+            percentage: 41,
+        });
+        await Rank.create({
+            name: '4★',
+            discordId: '4567890123',
+            percentage: 2,
+        });
+        await Rank.create({
+            name: '5★',
+            discordId: '5678901234',
+            percentage: 3,
+        });
+    }
 }
\ No newline at end of file
diff --git a/src/events/guild/GuildMemberJoin.ts b/src/events/guild/GuildMemberJoin.ts
index d4b4336..6c8ec20 100644
--- a/src/events/guild/GuildMemberJoin.ts
+++ b/src/events/guild/GuildMemberJoin.ts
@@ -3,8 +3,8 @@ import {CustomClient} from "../../base/classes/CustomClient";
 import {Event} from "../../base/classes/Event";
 import {User} from "../../base/models/User";
 import {getRandomRank} from "../../base/utils/RandomUtils";
-import {Rank} from "../../base/enums/Rank";
 import {addRole} from "../../base/utils/GachaUtils";
+import {Rank} from "../../base/models/Rank";
 
 export class GuildMemberJoin extends Event {
     constructor(client: CustomClient) {
@@ -26,11 +26,16 @@ export class GuildMemberJoin extends Event {
         if (!user) {
             user = await User.create({
                 discordId: member.id,
-                rank: getRandomRank()
+                rankId: (await getRandomRank()).id
+            }, {
+                include: [{
+                    model: Rank,
+                    as: 'rank'
+                }]
             });
         }
 
-        await addRole(member, user, this.client);
+        await addRole(member, user);
 
         const channel = await member.guild.channels.fetch(this.client.config.welcomeChannel);
 
@@ -39,7 +44,7 @@ export class GuildMemberJoin extends Event {
             let embed = new EmbedBuilder()
                 .setTitle(`Bienvenue sur le serveur ${member.displayName} !`)
                 .setThumbnail(member.displayAvatarURL())
-                .setDescription(`Bien joué ! Tu as obtenu le rang : ${Rank[user.rank]}`)
+                .setDescription(`Bien joué ! Tu as obtenu le rang : ${user.rank.name}`)
                 .setTimestamp(new Date())
                 .setColor('#0078DE')
             ;