diff --git a/projects/policyengine-api-simulation/pyproject.toml b/projects/policyengine-api-simulation/pyproject.toml
index 770bdf4a..59e4876c 100644
--- a/projects/policyengine-api-simulation/pyproject.toml
+++ b/projects/policyengine-api-simulation/pyproject.toml
@@ -16,7 +16,7 @@ dependencies = [
     "pydantic-settings (>=2.7.1,<3.0.0)",
     "opentelemetry-instrumentation-fastapi (>=0.51b0,<0.52)",
     "policyengine-fastapi",
-    "policyengine==0.8.1",
+    "policyengine==0.9.0",
     "policyengine-uk>=2.22.8",
     "policyengine-us>=1.370.2",
     "tables>=3.10.2",
diff --git a/projects/policyengine-api-simulation/uv.lock b/projects/policyengine-api-simulation/uv.lock
index 896c4a86..a084afe3 100644
--- a/projects/policyengine-api-simulation/uv.lock
+++ b/projects/policyengine-api-simulation/uv.lock
@@ -646,6 +646,7 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/02/2f/28592176381b9ab2cafa12829ba7b472d177f3acc35d8fbcf3673d966fff/greenlet-3.3.0-cp313-cp313-macosx_11_0_universal2.whl", hash = "sha256:a1e41a81c7e2825822f4e068c48cb2196002362619e2d70b148f20a831c00739", size = 275140, upload-time = "2025-12-04T14:23:01.282Z" },
     { url = "https://files.pythonhosted.org/packages/2c/80/fbe937bf81e9fca98c981fe499e59a3f45df2a04da0baa5c2be0dca0d329/greenlet-3.3.0-cp313-cp313-manylinux_2_24_aarch64.manylinux_2_28_aarch64.whl", hash = "sha256:9f515a47d02da4d30caaa85b69474cec77b7929b2e936ff7fb853d42f4bf8808", size = 599219, upload-time = "2025-12-04T14:50:08.309Z" },
     { url = "https://files.pythonhosted.org/packages/c2/ff/7c985128f0514271b8268476af89aee6866df5eec04ac17dcfbc676213df/greenlet-3.3.0-cp313-cp313-manylinux_2_24_ppc64le.manylinux_2_28_ppc64le.whl", hash = "sha256:7d2d9fd66bfadf230b385fdc90426fcd6eb64db54b40c495b72ac0feb5766c54", size = 610211, upload-time = "2025-12-04T14:57:43.968Z" },
+    { url = "https://files.pythonhosted.org/packages/79/07/c47a82d881319ec18a4510bb30463ed6891f2ad2c1901ed5ec23d3de351f/greenlet-3.3.0-cp313-cp313-manylinux_2_24_s390x.manylinux_2_28_s390x.whl", hash = "sha256:30a6e28487a790417d036088b3bcb3f3ac7d8babaa7d0139edbaddebf3af9492", size = 624311, upload-time = "2025-12-04T15:07:14.697Z" },
     { url = "https://files.pythonhosted.org/packages/fd/8e/424b8c6e78bd9837d14ff7df01a9829fc883ba2ab4ea787d4f848435f23f/greenlet-3.3.0-cp313-cp313-manylinux_2_24_x86_64.manylinux_2_28_x86_64.whl", hash = "sha256:087ea5e004437321508a8d6f20efc4cfec5e3c30118e1417ea96ed1d93950527", size = 612833, upload-time = "2025-12-04T14:26:03.669Z" },
     { url = "https://files.pythonhosted.org/packages/b5/ba/56699ff9b7c76ca12f1cdc27a886d0f81f2189c3455ff9f65246780f713d/greenlet-3.3.0-cp313-cp313-musllinux_1_2_aarch64.whl", hash = "sha256:ab97cf74045343f6c60a39913fa59710e4bd26a536ce7ab2397adf8b27e67c39", size = 1567256, upload-time = "2025-12-04T15:04:25.276Z" },
     { url = "https://files.pythonhosted.org/packages/1e/37/f31136132967982d698c71a281a8901daf1a8fbab935dce7c0cf15f942cc/greenlet-3.3.0-cp313-cp313-musllinux_1_2_x86_64.whl", hash = "sha256:5375d2e23184629112ca1ea89a53389dddbffcf417dad40125713d88eb5f96e8", size = 1636483, upload-time = "2025-12-04T14:27:30.804Z" },
@@ -1488,7 +1489,7 @@ wheels = [
 
 [[package]]
 name = "policyengine"
-version = "0.8.1"
+version = "0.9.0"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "diskcache" },
@@ -1500,7 +1501,7 @@ dependencies = [
     { name = "policyengine-us" },
     { name = "pydantic" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/2f/30/2fa32bf5fc97c295d65a3a710b1dabb2ac0d7d88cb9fe074b45167275588/policyengine-0.8.1.tar.gz", hash = "sha256:9644073f84c2a71fde97ca6d279955364ff288d8d90f5cb072e117ec576a4aa7", size = 209162, upload-time = "2025-12-12T12:52:22.465Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/53/fa/27a2ccd95fa14ad9135772e1002c140abfef14c0a92f1479217dd5b98a44/policyengine-0.9.0.tar.gz", hash = "sha256:bf63a89a84adcc00458f46273d75817d7f76f3a587669d43fc5888b8c1bb379d", size = 209423, upload-time = "2026-01-14T20:29:49.436Z" }
 
 [[package]]
 name = "policyengine-core"
@@ -1603,7 +1604,7 @@ requires-dist = [
     { name = "openapi-python-client", marker = "extra == 'build'", specifier = ">=0.21.6" },
     { name = "opentelemetry-instrumentation-fastapi", specifier = ">=0.51b0,<0.52" },
     { name = "opentelemetry-instrumentation-sqlalchemy", specifier = ">=0.51b0,<0.52" },
-    { name = "policyengine", specifier = "==0.8.1" },
+    { name = "policyengine", specifier = "==0.9.0" },
     { name = "policyengine-fastapi", editable = "../../libs/policyengine-fastapi" },
     { name = "policyengine-uk", specifier = ">=2.22.8" },
     { name = "policyengine-us", specifier = ">=1.370.2" },