diff --git a/stock/openapi.yaml b/stock/openapi.yaml
index e50e91a..c438e2a 100644
--- a/stock/openapi.yaml
+++ b/stock/openapi.yaml
@@ -127,60 +127,6 @@ paths:
         '204':
           description: Producto eliminado
 
-  /stock/reservar:
-    post:
-      tags: [Stock]
-      summary: Reservar stock para una compra
-      requestBody:
-        required: true
-        content:
-          application/json:
-            schema:
-              $ref: '#/components/schemas/ReservaInput'
-      responses:
-        '200':
-          description: Reserva confirmada
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/ReservaOutput'
-        '400':
-          description: Stock insuficiente o datos inválidos
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/ErrorResponse'
-        '409':
-          description: Conflicto de reserva (condición de carrera)
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/ErrorResponse'
-
-  /stock/liberar:
-    post:
-      tags: [Stock]
-      summary: Liberar stock reservado
-      requestBody:
-        required: true
-        content:
-          application/json:
-            schema:
-              $ref: '#/components/schemas/LiberacionInput'
-      responses:
-        '200':
-          description: Stock liberado
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/LiberacionOutput'
-        '404':
-          description: Reserva no encontrada
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/ErrorResponse'
-
   /reservas:
     get:
       tags: [Reservas]
@@ -209,6 +155,34 @@ paths:
                 type: array
                 items:
                   $ref: '#/components/schemas/ReservaCompleta'
+    post:
+      tags: [Reservas]
+      summary: Crear una reserva
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/ReservaInput'
+      responses:
+        '201':
+          description: Reserva creada
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/ReservaOutput'
+        '400':
+          description: Stock insuficiente o datos inválidos
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/ErrorResponse'
+        '409':
+          description: Conflicto de reserva (condición de carrera)
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/ErrorResponse'
 
   /reservas/{idReserva}:
     get:
@@ -267,7 +241,31 @@ paths:
             application/json:
               schema:
                 $ref: '#/components/schemas/ErrorResponse'
-
+    delete:
+      tags: [Reservas]
+      summary: Cancelar una reserva
+      description: "Cancela una reserva y libera el stock correspondiente."
+      parameters:
+        - name: idReserva
+          in: path
+          required: true
+          schema:
+            type: integer
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/CancelacionReservaInput'
+      responses:
+        '204':
+          description: Reserva cancelada y stock liberado.
+        '404':
+          description: Reserva no encontrada
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/ErrorResponse'
   /categorias:
     get:
       tags: [Categorías]
@@ -409,6 +407,10 @@ components:
           type: number
           format: float
           minimum: 0
+        dimensiones:
+          $ref: '#/components/schemas/Dimensiones'
+        ubicacion:
+          $ref: '#/components/schemas/UbicacionAlmacen'
         imagenes:
           type: array
           items:
@@ -436,6 +438,10 @@ components:
         pesoKg:
           type: number
           format: float
+        dimensiones:
+          $ref: '#/components/schemas/Dimensiones'
+        ubicacion:
+          $ref: '#/components/schemas/UbicacionAlmacen'
         imagenes:
           type: array
           items:
@@ -468,6 +474,10 @@ components:
         pesoKg:
           type: number
           format: float
+        dimensiones:
+          $ref: '#/components/schemas/Dimensiones'
+        ubicacion:
+          $ref: '#/components/schemas/UbicacionAlmacen'
         imagenes:
           type: array
           items:
@@ -596,6 +606,16 @@ components:
         usuarioId: 123
         estado: "cancelado"
 
+    CancelacionReservaInput:
+      type: object
+      required: [motivo]
+      properties:
+        motivo:
+          type: string
+          description: "Motivo de la cancelación de la reserva."
+      example:
+        motivo: "El cliente canceló la compra."
+
     LiberacionInput:
       type: object
       required: [idReserva, usuarioId, motivo]
@@ -627,6 +647,36 @@ components:
         idReserva: 550
         estado: "liberado"
 
+    Dimensiones:
+      type: object
+      description: "Dimensiones del producto en centímetros."
+      properties:
+        largoCm:
+          type: number
+          format: float
+          minimum: 0
+        anchoCm:
+          type: number
+          format: float
+          minimum: 0
+        altoCm:
+          type: number
+          format: float
+          minimum: 0
+
+    UbicacionAlmacen:
+      type: object
+      description: "Ubicación física del producto en el almacén."
+      properties:
+        almacenId:
+          type: integer
+        pasillo:
+          type: string
+        estanteria:
+          type: string
+        nivel:
+          type: integer
+
     ErrorResponse:
       type: object
       properties:
@@ -702,4 +752,4 @@ components:
       example:
         id: 123
         nombre: "Juan Pérez"
-        email: "juan.perez@example.com"
+        email: "juan.perez@example.com"
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