diff --git a/geoservercloud/geoservercloud.py b/geoservercloud/geoservercloud.py
index be50190..2b81c1c 100644
--- a/geoservercloud/geoservercloud.py
+++ b/geoservercloud/geoservercloud.py
@@ -207,19 +207,17 @@ def create_pg_datastore(
         datastore = PostGisDataStore(
             workspace_name,
             datastore_name,
-            connection_parameters=KeyDollarListDict(
-                input_dict={
-                    "dbtype": "postgis",
-                    "host": pg_host,
-                    "port": pg_port,
-                    "database": pg_db,
-                    "user": pg_user,
-                    "passwd": pg_password,
-                    "schema": pg_schema,
-                    "namespace": f"http://{workspace_name}",
-                    "Expose primary keys": "true",
-                }
-            ),
+            connection_parameters={
+                "dbtype": "postgis",
+                "host": pg_host,
+                "port": pg_port,
+                "database": pg_db,
+                "user": pg_user,
+                "passwd": pg_password,
+                "schema": pg_schema,
+                "namespace": f"http://{workspace_name}",
+                "Expose primary keys": "true",
+            },
             data_store_type="PostGIS",
             description=description,
         )
@@ -258,15 +256,13 @@ def create_jndi_datastore(
         datastore = PostGisDataStore(
             workspace_name,
             datastore_name,
-            connection_parameters=KeyDollarListDict(
-                input_dict={
-                    "dbtype": "postgis",
-                    "jndiReferenceName": jndi_reference,
-                    "schema": pg_schema,
-                    "namespace": f"http://{workspace_name}",
-                    "Expose primary keys": "true",
-                }
-            ),
+            connection_parameters={
+                "dbtype": "postgis",
+                "jndiReferenceName": jndi_reference,
+                "schema": pg_schema,
+                "namespace": f"http://{workspace_name}",
+                "Expose primary keys": "true",
+            },
             data_store_type="PostGIS (JNDI)",
             description=description,
         )
diff --git a/geoservercloud/models/datastore.py b/geoservercloud/models/datastore.py
index ef31086..107721a 100644
--- a/geoservercloud/models/datastore.py
+++ b/geoservercloud/models/datastore.py
@@ -14,14 +14,14 @@ def __init__(
         self,
         workspace_name: str,
         data_store_name: str,
-        connection_parameters: KeyDollarListDict,
+        connection_parameters: dict,
         data_store_type: str = "PostGIS",
         enabled: bool = True,
         description: str | None = None,
     ) -> None:
         self.workspace_name = workspace_name
         self.data_store_name = data_store_name
-        self.connection_parameters = connection_parameters
+        self.connection_parameters = KeyDollarListDict(input_dict=connection_parameters)
         self.data_store_type = data_store_type
         self.description = description
         self.enabled = enabled