diff --git a/src/adapter/postgres.py b/src/adapter/postgres.py
index b29e675..2543848 100644
--- a/src/adapter/postgres.py
+++ b/src/adapter/postgres.py
@@ -265,9 +265,14 @@ class Postgres(DatabaseBase):
 
     @staticmethod
     async def get_project(
-        workspace_id: uuid.UUID, project_id: uuid.UUID | None = None, channel_id: uuid.UUID | None = None
+        workspace_id: uuid.UUID,
+        project_id: uuid.UUID | None = None,
+        channel_id: uuid.UUID | None = None,
+        include_deleted: bool = False,
     ) -> domain.Project | None:
-        query = domain.Project.filter(workspace_id=workspace_id, deleted_at__isnull=True).prefetch_related('channel')
+        query = domain.Project.filter(workspace_id=workspace_id).prefetch_related('channel')
+        if not include_deleted:
+            query = query.filter(deleted_at__isnull=True)
         if project_id:
             query = query.filter(id=project_id)
         if channel_id:
@@ -278,7 +283,9 @@ class Postgres(DatabaseBase):
     async def get_project_for_user_by_telegram(user_id: uuid.UUID, channel_telegram_id: int) -> domain.Project | None:
         return (
             await domain.Project.filter(
-                channel__telegram_id=channel_telegram_id, workspace__workspace_users__user_id=user_id
+                channel__telegram_id=channel_telegram_id,
+                workspace__workspace_users__user_id=user_id,
+                deleted_at__isnull=True,
             )
             .prefetch_related('channel')
             .first()
@@ -286,7 +293,11 @@ class Postgres(DatabaseBase):
 
     @staticmethod
     async def get_project_by_channel_telegram(channel_telegram_id: int) -> domain.Project | None:
-        return await domain.Project.filter(channel__telegram_id=channel_telegram_id).prefetch_related('channel').first()
+        return (
+            await domain.Project.filter(channel__telegram_id=channel_telegram_id, deleted_at__isnull=True)
+            .prefetch_related('channel')
+            .first()
+        )
 
     @staticmethod
     async def create_project(project: domain.Project) -> None:
@@ -341,7 +352,9 @@ class Postgres(DatabaseBase):
 
     @staticmethod
     async def check_channel_exists_in_workspace(channel_id: uuid.UUID, workspace_id: uuid.UUID) -> bool:
-        project = await domain.Project.get_or_none(channel_id=channel_id, workspace_id=workspace_id)
+        project = await domain.Project.get_or_none(
+            channel_id=channel_id, workspace_id=workspace_id, deleted_at__isnull=True
+        )
         return project is not None
 
     @staticmethod
diff --git a/src/usecase/project/tg_add_project.py b/src/usecase/project/tg_add_project.py
index 9304423..4fab33a 100644
--- a/src/usecase/project/tg_add_project.py
+++ b/src/usecase/project/tg_add_project.py
@@ -170,9 +170,10 @@ async def tg_add_project(self: 'Usecase', input: dto.ConnectProjectInput) -> dto
             )
             await self.database.create_channel(channel)
 
-        project = await self.database.get_project(workspace.id, channel_id=channel.id)
+        project = await self.database.get_project(workspace.id, channel_id=channel.id, include_deleted=True)
         if project:
             project.status = domain.ProjectStatus.ACTIVE
+            project.deleted_at = None
             await self.database.update_project(project)
         else:
             project = domain.Project(