diff --git a/CHANGELOG.md b/CHANGELOG.md
index a9496730..65affdae 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,12 @@ This project uses [*towncrier*](https://towncrier.readthedocs.io/) and the chang
 
 <!-- towncrier release notes start -->
 
+## [1.9.1](https://github.com/opsmill/infrahub-sdk-python/tree/v1.9.1) - 2025-03-21
+
+### Fixed
+
+- Fixed an issue where the process_nodes method in the generators used the old format of the schema hash, so node population didn't work
+
 ## [1.9.0](https://github.com/opsmill/infrahub-sdk-python/tree/v1.9.0) - 2025-03-21
 
 ### Added
diff --git a/infrahub_sdk/generator.py b/infrahub_sdk/generator.py
index 831d9c98..e08f6642 100644
--- a/infrahub_sdk/generator.py
+++ b/infrahub_sdk/generator.py
@@ -125,7 +125,7 @@ async def process_nodes(self, data: dict) -> None:
         await self._init_client.schema.all(branch=self.branch_name)
 
         for kind in data:
-            if kind in self._init_client.schema.cache[self.branch_name]:
+            if kind in self._init_client.schema.cache[self.branch_name].nodes.keys():
                 for result in data[kind].get("edges", []):
                     node = await self.infrahub_node.from_graphql(
                         client=self._init_client, branch=self.branch_name, data=result
diff --git a/pyproject.toml b/pyproject.toml
index 8c528248..360f9608 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "infrahub-sdk"
-version = "1.9.0"
+version = "1.9.1"
 description = "Python Client to interact with Infrahub"
 authors = ["OpsMill <info@opsmill.com>"]
 readme = "README.md"