diff --git a/.chronus/changes/copilot-update-pyproject-toml-python-support-2026-3-2-1-15-23.md b/.chronus/changes/copilot-update-pyproject-toml-python-support-2026-3-2-1-15-23.md
new file mode 100644
index 00000000000..0dd8ffb1784
--- /dev/null
+++ b/.chronus/changes/copilot-update-pyproject-toml-python-support-2026-3-2-1-15-23.md
@@ -0,0 +1,7 @@
+---
+changeKind: feature
+packages:
+  - "@typespec/http-client-python"
+---
+
+Add Python 3.14 classifier to generated pyproject.toml
\ No newline at end of file
diff --git a/packages/http-client-python/generator/pygen/codegen/serializers/general_serializer.py b/packages/http-client-python/generator/pygen/codegen/serializers/general_serializer.py
index 54fe489920d..02238a3b287 100644
--- a/packages/http-client-python/generator/pygen/codegen/serializers/general_serializer.py
+++ b/packages/http-client-python/generator/pygen/codegen/serializers/general_serializer.py
@@ -29,7 +29,7 @@
 }
 
 MIN_PYTHON_VERSION = "3.9"
-MAX_PYTHON_VERSION = "3.13"
+MAX_PYTHON_VERSION = "3.14"
 
 
 class GeneralSerializer(BaseSerializer):
diff --git a/packages/http-client-python/generator/setup.py b/packages/http-client-python/generator/setup.py
index ad746f103a1..26365534647 100644
--- a/packages/http-client-python/generator/setup.py
+++ b/packages/http-client-python/generator/setup.py
@@ -39,6 +39,7 @@
         "Programming Language :: Python :: 3.10",
         "Programming Language :: Python :: 3.11",
         "Programming Language :: Python :: 3.12",
+        "Programming Language :: Python :: 3.14",
         "License :: OSI Approved :: MIT License",
     ],
     packages=find_packages(