diff --git a/CHANGELOG.md b/CHANGELOG.md
index 54f17963..11428fad 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,7 @@
 
 - Refactor global state reading ([888](https://github.com/databricks/dbt-databricks/pull/888))
 - Switch to relation.render() for string interpolation ([903](https://github.com/databricks/dbt-databricks/pull/903))
+- Ensure retry defaults for PySQL ([907](https://github.com/databricks/dbt-databricks/pull/907))
 
 ## dbt-databricks 1.9.1 (December 16, 2024)
 
diff --git a/dbt/adapters/databricks/credentials.py b/dbt/adapters/databricks/credentials.py
index 387d0e76..250e79f6 100644
--- a/dbt/adapters/databricks/credentials.py
+++ b/dbt/adapters/databricks/credentials.py
@@ -74,8 +74,10 @@ class DatabricksCredentials(Credentials):
     @classmethod
     def __pre_deserialize__(cls, data: dict[Any, Any]) -> dict[Any, Any]:
         data = super().__pre_deserialize__(data)
-        if "database" not in data:
-            data["database"] = None
+        data.setdefault("database", None)
+        data.setdefault("connection_parameters", {})
+        data["connection_parameters"].setdefault("_retry_stop_after_attempts_count", 30)
+        data["connection_parameters"].setdefault("_retry_delay_max", 60)
         return data
 
     def __post_init__(self) -> None: