diff --git a/functions/graphql/project/interfaces.ts b/functions/graphql/project/interfaces.ts
index 7693a4e..7337bff 100644
--- a/functions/graphql/project/interfaces.ts
+++ b/functions/graphql/project/interfaces.ts
@@ -1,4 +1,5 @@
 export interface CreateProjectData {
   name: string
-  slug: string
+  subdomain: string
+  customDomain?: string
 }
diff --git a/functions/graphql/project/queries.ts b/functions/graphql/project/queries.ts
index b41c518..cbdf540 100644
--- a/functions/graphql/project/queries.ts
+++ b/functions/graphql/project/queries.ts
@@ -1,4 +1,4 @@
 export const queries = `#graphql
     getUserProjects: [Project]
-    getProjectBySlug(slug: String!): Project
+    getProjectByDomain(domain: String!): Project
 `
diff --git a/functions/graphql/project/resolvers.ts b/functions/graphql/project/resolvers.ts
index 8e9d963..ffd4901 100644
--- a/functions/graphql/project/resolvers.ts
+++ b/functions/graphql/project/resolvers.ts
@@ -1,4 +1,3 @@
-import slugify from 'slugify'
 import ProjectService from '../../../services/project'
 import { ensureAuthenticated } from '../../../utils/auth'
 import { ServerContext } from '../interfaces'
@@ -11,14 +10,14 @@ const queries = {
     ensureAuthenticated(ctx)
     return ProjectService.getUserProjects(ctx.user?.id!)
   },
-  getProjectBySlug: async (
+  getProjectByDomain: async (
     _: any,
-    { slug }: { slug: string },
+    { domain }: { domain: string },
     ctx: ServerContext
   ) => {
     ensureAuthenticated(ctx)
-    const project = await ProjectService.getProjectBySlug({
-      slug,
+    const project = await ProjectService.getProjectByDomain({
+      domain,
       userId: ctx.user?.id!,
     })
     return project
@@ -34,7 +33,8 @@ const mutations = {
     const project = await ProjectService.create({
       data: {
         name: data.name,
-        slug: slugify(data.slug),
+        customDomain: data.customDomain,
+        subdomain: data.subdomain,
         ProjectAccessMapping: {
           create: {
             role: 'OWNER',
diff --git a/functions/graphql/project/types.ts b/functions/graphql/project/types.ts
index e395e68..bf0ad0e 100644
--- a/functions/graphql/project/types.ts
+++ b/functions/graphql/project/types.ts
@@ -1,13 +1,15 @@
 export const types = `#graphql
     input CreateProjectData {
         name: String!
-        slug: String!
+        subdomain: String!
+        customDomain: String
     }
 
     type Project {
         id: ID!
         name: String!
-        slug: String!
+        subdomain: String!
+        customDomain: String
         createdAt: Date
         updatedAt: Date
     }
diff --git a/prisma/migrations/20231008073028_add_custom_subdomain_to_project/migration.sql b/prisma/migrations/20231008073028_add_custom_subdomain_to_project/migration.sql
new file mode 100644
index 0000000..140d38c
--- /dev/null
+++ b/prisma/migrations/20231008073028_add_custom_subdomain_to_project/migration.sql
@@ -0,0 +1,22 @@
+/*
+  Warnings:
+
+  - You are about to drop the column `slug` on the `projects` table. All the data in the column will be lost.
+  - A unique constraint covering the columns `[subdomain]` on the table `projects` will be added. If there are existing duplicate values, this will fail.
+  - A unique constraint covering the columns `[custom_domain]` on the table `projects` will be added. If there are existing duplicate values, this will fail.
+  - Added the required column `subdomain` to the `projects` table without a default value. This is not possible if the table is not empty.
+
+*/
+-- DropIndex
+DROP INDEX "projects_slug_key";
+
+-- AlterTable
+ALTER TABLE "projects" DROP COLUMN "slug",
+ADD COLUMN     "custom_domain" TEXT,
+ADD COLUMN     "subdomain" TEXT NOT NULL;
+
+-- CreateIndex
+CREATE UNIQUE INDEX "projects_subdomain_key" ON "projects"("subdomain");
+
+-- CreateIndex
+CREATE UNIQUE INDEX "projects_custom_domain_key" ON "projects"("custom_domain");
diff --git a/prisma/schema.prisma b/prisma/schema.prisma
index a81a371..2103a96 100644
--- a/prisma/schema.prisma
+++ b/prisma/schema.prisma
@@ -47,7 +47,8 @@ model User {
 model Project {
   id                   String                 @id @default(uuid())
   name                 String
-  slug                 String                 @unique
+  subdomain            String                 @unique
+  customDomain         String?                @unique @map("custom_domain")
   createdAt            DateTime               @default(now()) @map("created_at")
   updatedAt            DateTime               @updatedAt @map("updated_at")
   ProjectAccessMapping ProjectAccessMapping[]
diff --git a/services/project.ts b/services/project.ts
index b0b560f..8b5d9b7 100644
--- a/services/project.ts
+++ b/services/project.ts
@@ -1,5 +1,4 @@
 import prismaClient from '../db'
-
 class ProjectService {
   public static create = prismaClient.project.create
 
@@ -9,19 +8,20 @@ class ProjectService {
     })
   }
 
-  public static getProjectBySlug({
-    slug,
+  public static async getProjectByDomain({
+    domain,
     userId,
   }: {
-    slug: string
+    domain: string
     userId: string
   }) {
-    return prismaClient.project.findUnique({
+    const [project] = await prismaClient.project.findMany({
       where: {
-        slug,
+        OR: [{ subdomain: domain }, { customDomain: domain }],
         ProjectAccessMapping: { every: { user: { id: userId } } },
       },
     })
+    return project
   }
 }