diff --git a/src/modules/project/repositories/project.repository.js b/src/modules/project/repositories/project.repository.js
index e140deb..c493fa7 100644
--- a/src/modules/project/repositories/project.repository.js
+++ b/src/modules/project/repositories/project.repository.js
@@ -428,6 +428,9 @@ class ProjectRepository {
           in: userIds.map((id) => parseInt(id)),
         },
         status: "active",
+        project: {
+          status: "active"
+        }
       },
       include: {
         user: {
diff --git a/src/modules/project/services/project.service.js b/src/modules/project/services/project.service.js
index 6d5a54b..5758e40 100644
--- a/src/modules/project/services/project.service.js
+++ b/src/modules/project/services/project.service.js
@@ -541,6 +541,9 @@ class ProjectService {
       if (!project) {
         return error(new NotFoundError("Project not found"));
       }
+      if (project.status !== "active") {
+        return error(new ConflictError("Cannot assign member to a non-active project"));
+      }
 
       const user = await projectRepository.findUserByIdAndActive(id_user);
       if (!user) {
diff --git a/src/routes/project.routes.js b/src/routes/project.routes.js
index 459a47c..23335b0 100644
--- a/src/routes/project.routes.js
+++ b/src/routes/project.routes.js
@@ -853,7 +853,7 @@ router.get('/interns', verifyJWT, isMentorOrAdmin, projectController.getInterns)
  *       404:
  *         description: Project or User not found
  *       409:
- *         description: Conflict (User is already an active member of this project)
+ *         description: Conflict (User is already an active member of this project or target project is not active)
  *       500:
  *         description: Internal server error
  */