diff --git a/alembic/versions/af63c0205b19_adding_library_id_foreign_key_to_user.py b/alembic/versions/af63c0205b19_adding_library_id_foreign_key_to_user.py
index d5a24e4..b253b1a 100644
--- a/alembic/versions/af63c0205b19_adding_library_id_foreign_key_to_user.py
+++ b/alembic/versions/af63c0205b19_adding_library_id_foreign_key_to_user.py
@@ -3,54 +3,58 @@
 Revision ID: af63c0205b19
 Revises: 4cc89f2f896b
 Create Date: 2025-07-09 15:00:40.189587
+
 """
 
 # revision identifiers, used by Alembic.
 revision = 'af63c0205b19'
 down_revision = '4cc89f2f896b'
 
-
 from alembic import op
 import sqlalchemy as sa
 import json
-
+                               
 from sqlalchemy.dialects import postgresql
 
 def upgrade():
     #with app.app_context() as c:
     #   db.session.add(Model())
     #   db.session.commit()
-
+        
     # ### commands auto generated by Alembic - please adjust! ###
     # Add foreign key constraint to users table 
     op.add_column('users', sa.Column('library_id', sa.Integer(), nullable=True))
     op.create_foreign_key(None, 'users', 'library', ['library_id'], ['id'])
 
-
     bind = op.get_bind() 
     # Get all users with link_server in user_data 
     # Delete link_server from user_data 
     # But save the link_server in the library table instead to be accessible via users.library_id
-
+    
     users = bind.execute("SELECT id, user_data FROM users WHERE user_data ? 'link_server'")
 
     for user_id, user_data in users: 
-
         if user_data and isinstance(user_data, dict): 
             link_server = user_data.get('link_server')
             if link_server: 
-                library = bind.execute(
-                    "SELECT id FROM library WHERE libserver = %s", (link_server,)
+                library_result = bind.execute(
+                    "SELECT id FROM library WHERE libserver = %(libserver)s", 
+                    {"libserver": link_server}
                 ).fetchone()
 
-                library_id = library[0] if library else None
+                library_id = library_result[0] if library_result else None
 
                 new_user_data = user_data.copy()
                 new_user_data.pop('link_server', None)
 
+                # Convert dictionary to JSON string for PostgreSQL
                 bind.execute(
-                    "UPDATE users SET user_data = %s, library_id = %s WHERE id = %s",
-                    (new_user_data, library_id, user_id)
+                    "UPDATE users SET user_data = %(user_data)s, library_id = %(library_id)s WHERE id = %(user_id)s",
+                    {
+                        "user_data": json.dumps(new_user_data),
+                        "library_id": library_id, 
+                        "user_id": user_id
+                    }
                 )
 
 def downgrade():
@@ -59,14 +63,20 @@ def downgrade():
     bind = op.get_bind()
 
     result = bind.execute("SELECT u.id, u.user_data, l.libserver FROM users u JOIN library l ON u.library_id = l.id WHERE u.library_id IS NOT NULL")
-
+    
     for user_id, user_data, libserver in result: 
         user_data = user_data or {}
         if isinstance(user_data, dict): 
             if libserver is not None: 
                 user_data['link_server'] = libserver
-            bind.execute("UPDATE users SET user_data = %s WHERE id = %s", (json.dumps(user_data), user_id))
-
+            bind.execute(
+                "UPDATE users SET user_data = %(user_data)s WHERE id = %(user_id)s", 
+                {
+                    "user_data": json.dumps(user_data), 
+                    "user_id": user_id
+                }
+            )
+    
     op.drop_constraint(None, 'users', type_='foreignkey')
     op.drop_column('users', 'library_id')
-    # ### end Alembic commands ###
+    # ### end Alembic commands ###
\ No newline at end of file