diff --git a/changelog.d/policyengine-uk-2.88.14.changed.md b/changelog.d/policyengine-uk-2.88.14.changed.md
new file mode 100644
index 00000000..6d84665b
--- /dev/null
+++ b/changelog.d/policyengine-uk-2.88.14.changed.md
@@ -0,0 +1 @@
+Update policyengine-uk to 2.88.14.
diff --git a/pyproject.toml b/pyproject.toml
index 074b7fca..86b9d331 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -12,7 +12,7 @@ dependencies = [
     "supabase>=2.10.0",
     "storage3>=0.8.1",
     "policyengine>=3.2.3",
-    "policyengine-uk==2.75.1",
+    "policyengine-uk==2.88.14",
     "policyengine-us==1.666.1",
     "pydantic>=2.9.2",
     "pydantic-settings>=2.6.0",
diff --git a/uv.lock b/uv.lock
index 9edb60c8..0cda9e0d 100644
--- a/uv.lock
+++ b/uv.lock
@@ -1917,7 +1917,7 @@ wheels = [
 
 [[package]]
 name = "policyengine-api-v2"
-version = "0.6.4"
+version = "0.6.6"
 source = { editable = "." }
 dependencies = [
     { name = "alembic" },
@@ -1971,7 +1971,7 @@ requires-dist = [
     { name = "logfire", extras = ["fastapi", "httpx", "sqlalchemy"], specifier = ">=0.60.0" },
     { name = "modal", specifier = ">=0.68.0" },
     { name = "policyengine", specifier = ">=3.2.3" },
-    { name = "policyengine-uk", specifier = "==2.75.1" },
+    { name = "policyengine-uk", specifier = "==2.88.14" },
     { name = "policyengine-us", specifier = "==1.666.1" },
     { name = "psycopg2-binary", specifier = ">=2.9.10" },
     { name = "pydantic", specifier = ">=2.9.2" },
@@ -1995,7 +1995,7 @@ dev = [{ name = "pytest-asyncio", specifier = ">=1.3.0" }]
 
 [[package]]
 name = "policyengine-core"
-version = "3.25.2"
+version = "3.26.1"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "dpath" },
@@ -2015,14 +2015,14 @@ dependencies = [
     { name = "standard-imghdr" },
     { name = "wheel" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/d1/ed/117c487e09bc2d5dae1d39baef2d317158433f66004f38f19f6ed82110eb/policyengine_core-3.25.2.tar.gz", hash = "sha256:de80b64b969e3c6b5a3046e29e5b9f2ce56c82f874064f65556fa60c8c423f17", size = 466431, upload-time = "2026-04-21T17:37:40.654Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/e7/56/666e1e708cbd61078989edc943d5389d45123beb7124a5e3180171656ff6/policyengine_core-3.26.1.tar.gz", hash = "sha256:dc4e3007bcd137cbe608042d067cedb889a9b8671db3d08c8e237f1ac3e324b4", size = 472159, upload-time = "2026-05-07T23:46:43.228Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/a2/22/b2297927a2091a22267c112e8d5d5d2b374d0f1ce67f257816fee1388170/policyengine_core-3.25.2-py3-none-any.whl", hash = "sha256:c884961937940e16730fb473d486728ed8c66250dc65df15257ad611e6655b09", size = 231186, upload-time = "2026-04-21T17:37:39.148Z" },
+    { url = "https://files.pythonhosted.org/packages/15/2f/9be635fe4dfb2fe65d200c33695f5a96ef98a2921f06ff6d465384b0e551/policyengine_core-3.26.1-py3-none-any.whl", hash = "sha256:185374b3c1fe13dc951637c49a9853211ca61a8a9971eb9cc4c4b07b1477240a", size = 232190, upload-time = "2026-05-07T23:46:41.797Z" },
 ]
 
 [[package]]
 name = "policyengine-uk"
-version = "2.75.1"
+version = "2.88.14"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "microdf-python" },
@@ -2030,9 +2030,9 @@ dependencies = [
     { name = "pydantic" },
     { name = "tables" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/15/02/56d6a79e120c882c8aa292fd82f3d90225d938630eb9427dff40bcc416b1/policyengine_uk-2.75.1.tar.gz", hash = "sha256:34478b267bf5c3110a9202535b757fb9c53d3813a86546b31e7b7c33cf9283c9", size = 1102676, upload-time = "2026-03-10T10:54:32.338Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/8c/2b/ab82aa30c5d27176fd9d449ff5ed9708d0080b00912f7dc2efa0af0fd87e/policyengine_uk-2.88.14.tar.gz", hash = "sha256:21a4387ae52dcb5430b6d790edcc321816ed47147a3a0e21ffd482a36834d352", size = 1185947, upload-time = "2026-05-09T04:19:25.284Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/52/28/cb9eff0ad163563a5dcb9667addb3e4a7929696a45b34b90d46a41f0d622/policyengine_uk-2.75.1-py3-none-any.whl", hash = "sha256:77d2552be3e2df1bbcb95a463a99aee22f9c4f8976c58a1d3cde2831c4454d3a", size = 1697838, upload-time = "2026-03-10T10:54:30.57Z" },
+    { url = "https://files.pythonhosted.org/packages/a3/fc/276fb639a46bda35523329d8968bcc4089fde9e97fab82722c0ec853c6cc/policyengine_uk-2.88.14-py3-none-any.whl", hash = "sha256:ed10005ba7d0c973c0966ebbf7672853fb3caaa0456b8bf485fb13f8c323d975", size = 1913671, upload-time = "2026-05-09T04:19:23.364Z" },
 ]
 
 [[package]]