diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 864c3f0ed..5c0eb511c 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "0.176.0"
+  ".": "0.176.1"
 }
\ No newline at end of file
diff --git a/CHANGELOG.md b/CHANGELOG.md
index da7e8d234..72eaf7206 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,19 @@
 # Changelog
 
+## 0.176.1 (2025-01-07)
+
+Full Changelog: [v0.176.0...v0.176.1](https://github.com/Increase/increase-python/compare/v0.176.0...v0.176.1)
+
+### Bug Fixes
+
+* **client:** only call .close() when needed ([#901](https://github.com/Increase/increase-python/issues/901)) ([ddb9128](https://github.com/Increase/increase-python/commit/ddb912885847512f44f3e8a6469c74372f444d67))
+
+
+### Chores
+
+* add missing isclass check ([#898](https://github.com/Increase/increase-python/issues/898)) ([664358c](https://github.com/Increase/increase-python/commit/664358c615c460abbe5f7b886342cea8dc39748d))
+* **internal:** bump httpx dependency ([#900](https://github.com/Increase/increase-python/issues/900)) ([4922758](https://github.com/Increase/increase-python/commit/4922758971a874d0f4a802241126586bc86bf555))
+
 ## 0.176.0 (2025-01-02)
 
 Full Changelog: [v0.175.0...v0.176.0](https://github.com/Increase/increase-python/compare/v0.175.0...v0.176.0)
diff --git a/pyproject.toml b/pyproject.toml
index 546e5bc74..fb714adfe 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "increase"
-version = "0.176.0"
+version = "0.176.1"
 description = "The official Python library for the increase API"
 dynamic = ["readme"]
 license = "Apache-2.0"
@@ -54,7 +54,7 @@ dev-dependencies = [
     "dirty-equals>=0.6.0",
     "importlib-metadata>=6.7.0",
     "rich>=13.7.1",
-    "nest_asyncio==1.6.0"
+    "nest_asyncio==1.6.0",
 ]
 
 [tool.rye.scripts]
diff --git a/requirements-dev.lock b/requirements-dev.lock
index f93fb910c..9a6b7d897 100644
--- a/requirements-dev.lock
+++ b/requirements-dev.lock
@@ -35,7 +35,7 @@ h11==0.14.0
     # via httpcore
 httpcore==1.0.2
     # via httpx
-httpx==0.25.2
+httpx==0.28.1
     # via increase
     # via respx
 idna==3.4
@@ -76,7 +76,7 @@ python-dateutil==2.8.2
     # via time-machine
 pytz==2023.3.post1
     # via dirty-equals
-respx==0.20.2
+respx==0.22.0
 rich==13.7.1
 ruff==0.6.9
 setuptools==68.2.2
@@ -85,7 +85,6 @@ six==1.16.0
     # via python-dateutil
 sniffio==1.3.0
     # via anyio
-    # via httpx
     # via increase
 time-machine==2.9.0
 tomli==2.0.2
diff --git a/requirements.lock b/requirements.lock
index a1809fbc0..be7bd4584 100644
--- a/requirements.lock
+++ b/requirements.lock
@@ -25,7 +25,7 @@ h11==0.14.0
     # via httpcore
 httpcore==1.0.2
     # via httpx
-httpx==0.25.2
+httpx==0.28.1
     # via increase
 idna==3.4
     # via anyio
@@ -36,7 +36,6 @@ pydantic-core==2.27.1
     # via pydantic
 sniffio==1.3.0
     # via anyio
-    # via httpx
     # via increase
 typing-extensions==4.12.2
     # via anyio
diff --git a/src/increase/_base_client.py b/src/increase/_base_client.py
index 5d09af06c..40466184d 100644
--- a/src/increase/_base_client.py
+++ b/src/increase/_base_client.py
@@ -767,6 +767,9 @@ def __init__(self, **kwargs: Any) -> None:
 
 class SyncHttpxClientWrapper(DefaultHttpxClient):
     def __del__(self) -> None:
+        if self.is_closed:
+            return
+
         try:
             self.close()
         except Exception:
@@ -1334,6 +1337,9 @@ def __init__(self, **kwargs: Any) -> None:
 
 class AsyncHttpxClientWrapper(DefaultAsyncHttpxClient):
     def __del__(self) -> None:
+        if self.is_closed:
+            return
+
         try:
             # TODO(someday): support non asyncio runtimes here
             asyncio.get_running_loop().create_task(self.aclose())
diff --git a/src/increase/_models.py b/src/increase/_models.py
index 7a547ce5c..d56ea1d9e 100644
--- a/src/increase/_models.py
+++ b/src/increase/_models.py
@@ -488,7 +488,11 @@ def construct_type(*, value: object, type_: object) -> object:
         _, items_type = get_args(type_)  # Dict[_, items_type]
         return {key: construct_type(value=item, type_=items_type) for key, item in value.items()}
 
-    if not is_literal_type(type_) and (issubclass(origin, BaseModel) or issubclass(origin, GenericModel)):
+    if (
+        not is_literal_type(type_)
+        and inspect.isclass(origin)
+        and (issubclass(origin, BaseModel) or issubclass(origin, GenericModel))
+    ):
         if is_list(value):
             return [cast(Any, type_).construct(**entry) if is_mapping(entry) else entry for entry in value]
 
diff --git a/src/increase/_version.py b/src/increase/_version.py
index 56de4a275..5669ee2c0 100644
--- a/src/increase/_version.py
+++ b/src/increase/_version.py
@@ -1,4 +1,4 @@
 # File generated from our OpenAPI spec by Stainless. See CONTRIBUTING.md for details.
 
 __title__ = "increase"
-__version__ = "0.176.0"  # x-release-please-version
+__version__ = "0.176.1"  # x-release-please-version