diff --git a/backend/open_webui/migrations/versions/ca81bd47c050_add_config_table.py b/backend/open_webui/migrations/versions/ca81bd47c050_add_config_table.py
index 93eecc974e..ff54232bdd 100644
--- a/backend/open_webui/migrations/versions/ca81bd47c050_add_config_table.py
+++ b/backend/open_webui/migrations/versions/ca81bd47c050_add_config_table.py
@@ -18,25 +18,30 @@ depends_on: Union[str, Sequence[str], None] = None
 
 def upgrade() -> None:
     """Create a key-value config table with versioning."""
-    op.create_table(
-        'config',
-        sa.Column('id', sa.Integer, primary_key=True),
-        sa.Column('data', sa.JSON(), nullable=False),
-        sa.Column('version', sa.Integer, nullable=False),
-        sa.Column(
-            'created_at',
-            sa.DateTime(),
-            nullable=False,
-            server_default=sa.func.now(),
-        ),
-        sa.Column(
-            'updated_at',
-            sa.DateTime(),
-            nullable=True,
-            server_default=sa.func.now(),
-            onupdate=sa.func.now(),
-        ),
-    )
+    conn = op.get_bind()
+    inspector = sa.inspect(conn)
+    existing_tables = set(inspector.get_table_names())
+
+    if 'config' not in existing_tables:
+        op.create_table(
+            'config',
+            sa.Column('id', sa.Integer, primary_key=True),
+            sa.Column('data', sa.JSON(), nullable=False),
+            sa.Column('version', sa.Integer, nullable=False),
+            sa.Column(
+                'created_at',
+                sa.DateTime(),
+                nullable=False,
+                server_default=sa.func.now(),
+            ),
+            sa.Column(
+                'updated_at',
+                sa.DateTime(),
+                nullable=True,
+                server_default=sa.func.now(),
+                onupdate=sa.func.now(),
+            ),
+        )
 
 
 def downgrade() -> None:
diff --git a/backend/open_webui/migrations/versions/d31026856c01_update_folder_table_data.py b/backend/open_webui/migrations/versions/d31026856c01_update_folder_table_data.py
index c30cd62aac..60c2e6e9e0 100644
--- a/backend/open_webui/migrations/versions/d31026856c01_update_folder_table_data.py
+++ b/backend/open_webui/migrations/versions/d31026856c01_update_folder_table_data.py
@@ -16,7 +16,12 @@ depends_on = None
 
 
 def upgrade():
-    op.add_column('folder', sa.Column('data', sa.JSON(), nullable=True))
+    conn = op.get_bind()
+    inspector = sa.inspect(conn)
+    folder_cols = {c['name'] for c in inspector.get_columns('folder')}
+
+    if 'data' not in folder_cols:
+        op.add_column('folder', sa.Column('data', sa.JSON(), nullable=True))
 
 
 def downgrade():