diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 802e19924e..fc624851e9 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "1.59.5"
+  ".": "1.59.6"
 }
\ No newline at end of file
diff --git a/.stats.yml b/.stats.yml
index 1ac7a94471..9600edae3b 100644
--- a/.stats.yml
+++ b/.stats.yml
@@ -1,2 +1,2 @@
 configured_endpoints: 69
-openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/openai-02200a58ed631064b6419711da99fefd6e97bdbbeb577a80a1a6e0c8dbcb18f5.yml
+openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/openai-b5b0e2c794b012919701c3fd43286af10fa25d33ceb8a881bec2636028f446e0.yml
diff --git a/CHANGELOG.md b/CHANGELOG.md
index e3a67b7ac9..e65def028e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,18 @@
 # Changelog
 
+## 1.59.6 (2025-01-09)
+
+Full Changelog: [v1.59.5...v1.59.6](https://github.com/openai/openai-python/compare/v1.59.5...v1.59.6)
+
+### Bug Fixes
+
+* correctly handle deserialising `cls` fields ([#2002](https://github.com/openai/openai-python/issues/2002)) ([089c820](https://github.com/openai/openai-python/commit/089c820c8a5d20e9db6a171f0a4f11b481fe8465))
+
+
+### Chores
+
+* **internal:** spec update ([#2000](https://github.com/openai/openai-python/issues/2000)) ([36548f8](https://github.com/openai/openai-python/commit/36548f871763fdd7b5ce44903d186bc916331549))
+
 ## 1.59.5 (2025-01-08)
 
 Full Changelog: [v1.59.4...v1.59.5](https://github.com/openai/openai-python/compare/v1.59.4...v1.59.5)
diff --git a/pyproject.toml b/pyproject.toml
index 7529b69960..4131e9c1fd 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "openai"
-version = "1.59.5"
+version = "1.59.6"
 description = "The official Python library for the openai API"
 dynamic = ["readme"]
 license = "Apache-2.0"
diff --git a/src/openai/_models.py b/src/openai/_models.py
index 1bbc5fa4cc..23456d9f80 100644
--- a/src/openai/_models.py
+++ b/src/openai/_models.py
@@ -204,14 +204,14 @@ def __str__(self) -> str:
     @classmethod
     @override
     def construct(  # pyright: ignore[reportIncompatibleMethodOverride]
-        cls: Type[ModelT],
+        __cls: Type[ModelT],
         _fields_set: set[str] | None = None,
         **values: object,
     ) -> ModelT:
-        m = cls.__new__(cls)
+        m = __cls.__new__(__cls)
         fields_values: dict[str, object] = {}
 
-        config = get_model_config(cls)
+        config = get_model_config(__cls)
         populate_by_name = (
             config.allow_population_by_field_name
             if isinstance(config, _ConfigProtocol)
@@ -221,7 +221,7 @@ def construct(  # pyright: ignore[reportIncompatibleMethodOverride]
         if _fields_set is None:
             _fields_set = set()
 
-        model_fields = get_model_fields(cls)
+        model_fields = get_model_fields(__cls)
         for name, field in model_fields.items():
             key = field.alias
             if key is None or (key not in values and populate_by_name):
diff --git a/src/openai/_version.py b/src/openai/_version.py
index f8a67d7937..fa93e603a6 100644
--- a/src/openai/_version.py
+++ b/src/openai/_version.py
@@ -1,4 +1,4 @@
 # File generated from our OpenAPI spec by Stainless. See CONTRIBUTING.md for details.
 
 __title__ = "openai"
-__version__ = "1.59.5"  # x-release-please-version
+__version__ = "1.59.6"  # x-release-please-version
diff --git a/tests/test_models.py b/tests/test_models.py
index 19a71f13ba..30b17e3ac0 100644
--- a/tests/test_models.py
+++ b/tests/test_models.py
@@ -844,3 +844,13 @@ class Model(BaseModel):
     assert m.alias == "foo"
     assert isinstance(m.union, str)
     assert m.union == "bar"
+
+
+@pytest.mark.skipif(not PYDANTIC_V2, reason="TypeAliasType is not supported in Pydantic v1")
+def test_field_named_cls() -> None:
+    class Model(BaseModel):
+        cls: str
+
+    m = construct_type(value={"cls": "foo"}, type_=Model)
+    assert isinstance(m, Model)
+    assert isinstance(m.cls, str)