diff --git a/backend/alembic/env.py b/backend/alembic/env.py
index 5f3a45a4..3b7585f9 100644
--- a/backend/alembic/env.py
+++ b/backend/alembic/env.py
@@ -39,7 +39,9 @@ if alembic_config.config_file_name is not None:
 target_metadata = MappedBase.metadata
 
 # other values from the config, defined by the needs of env.py,
-alembic_config.set_main_option('sqlalchemy.url', SQLALCHEMY_DATABASE_URL.render_as_string(hide_password=False))
+alembic_config.set_main_option(
+    'sqlalchemy.url', SQLALCHEMY_DATABASE_URL.render_as_string(hide_password=False).replace('%', '%%')
+)
 
 
 def run_migrations_offline():