diff --git a/src/__tests__/app.test.ts b/src/__tests__/app.test.ts
index e0b47c2..348c5ae 100644
--- a/src/__tests__/app.test.ts
+++ b/src/__tests__/app.test.ts
@@ -12,6 +12,8 @@ const testUserCredentials = {
     password: "aaaaaaaaaa"
 }
 
+let category_id: number
+
 // Mettre a jour les routes Category en stockant les IDs sur GET pour reutiliser sur DELETE
 
 beforeAll(async () => {
@@ -133,17 +135,36 @@ describe('GET /v1/category', () => {
             .set('Content-Type', 'application/json')
             .set('Cookie', jwtCookie as string)
 
-        expect(res.status).toEqual(200)
-        expect(res.body).toHaveProperty('categories')
-    })
+        category_id = res.body.categories[0].id
 
-    it('returns status code 400 and error message', async () => {
+        expect(res.status).toEqual(200)
+        expect(res.body.categories[0].name).toEqual('VueJS Composition API')
+    })
+})
+
+describe('PUT /v1/category', () => {
+    it('returns status code 200 and a success message', async () => {
         const res = await request(app)
-            .post('/v1/category')
+            .put('/v1/category')
             .set('Content-Type', 'application/json')
             .set('Cookie', jwtCookie as string)
             .send(JSON.stringify({
-                pouet: 'VueJS Composition API'
+                id: category_id,
+                name: 'VueJS v3 Composition API'
+            }))
+
+        expect(res.status).toEqual(200)
+        expect(res.body).toHaveProperty('message')
+    })
+
+    it('returns status code 400 and an error message', async () => {
+        const res = await request(app)
+            .put('/v1/category')
+            .set('Content-Type', 'application/json')
+            .set('Cookie', jwtCookie as string)
+            .send(JSON.stringify({
+                id: 2,
+                pouet: 'salut'
             }))
 
         expect(res.status).toEqual(400)
@@ -158,7 +179,7 @@ describe('DELETE /v1/category', () => {
             .set('Content-Type', 'application/json')
             .set('Cookie', jwtCookie as string)
             .send(JSON.stringify({
-                name: 'VueJS Composition API'
+                id: category_id
             }))
 
         expect(res.status).toEqual(200)
diff --git a/src/routers/category.ts b/src/routers/category.ts
index ef60f4e..6cc8f6c 100644
--- a/src/routers/category.ts
+++ b/src/routers/category.ts
@@ -14,6 +14,12 @@ const categoryDeleteParser = z.object({
     id: z.number()
 }).required()
 
+const categoryUpdateParser = z.object({
+    id: z.number(),
+    name: z.string().max(50)
+}).required()
+
+// TODO Ajouter pagination et queries de recherche
 const categoryGet: RequestHandler = async (req, res) => {
     let categories: Category[] | null = null
 
@@ -44,6 +50,28 @@ const categoryPost: RequestHandler = async (req, res) => {
     res.json({ message: 'Category successfully added.' })
 }
 
+const categoryUpdate: RequestHandler = async (req, res) => {
+    let updated: Prisma.BatchPayload
+
+    try {
+        const categoryToUpdate = categoryUpdateParser.parse(req.body)
+        updated = await prisma.category.updateMany({
+            where: {
+                id: categoryToUpdate.id,
+                user_id: req.body.userId
+            },
+            data: {
+                name: categoryToUpdate.name
+            }
+        })
+    } catch (error: any) {
+        res.status(400).json({ message: (error.issues ?? error) })
+        return;
+    }
+
+    res.json({ message: `${updated.count} category / categories successfully updated.` })
+}
+
 const categoryDelete: RequestHandler = async (req, res) => {
     let deleted: Prisma.BatchPayload
 
@@ -65,6 +93,7 @@ const categoryDelete: RequestHandler = async (req, res) => {
 
 categoryRouter.get('/', userIdMiddleware, categoryGet)
 categoryRouter.post('/', userIdMiddleware, categoryPost)
+categoryRouter.put('/', userIdMiddleware, categoryUpdate)
 categoryRouter.delete('/', userIdMiddleware, categoryDelete)
 
 export default categoryRouter