diff --git a/setup.cfg b/setup.cfg
index 279ecca..43fcc3b 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,6 +1,6 @@
 [metadata]
 name = testcontainers-iris
-version = 1.1.2
+version = 1.2.0
 long_description_content_type = text/markdown
 long_description = file: README.md
 url = https://github.com/caretdev/testcontainers-iris-python
diff --git a/testcontainers/iris/__init__.py b/testcontainers/iris/__init__.py
index 25f690b..571f3b8 100644
--- a/testcontainers/iris/__init__.py
+++ b/testcontainers/iris/__init__.py
@@ -90,7 +90,7 @@ def get_connection_url(self, host=None) -> str:
             dialect="iris",
             username=self.username,
             password=self.password,
-            db_name=self.namespace,
+            dbname=self.namespace,
             host=host,
             port=self.port,
         )