diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index af721f5395..488f1adb5e 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "1.55.1"
+  ".": "1.55.2"
 }
\ No newline at end of file
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 409d3c2df0..8009aac671 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,18 @@
 # Changelog
 
+## 1.55.2 (2024-11-27)
+
+Full Changelog: [v1.55.1...v1.55.2](https://github.com/openai/openai-python/compare/v1.55.1...v1.55.2)
+
+### Chores
+
+* **internal:** exclude mypy from running on tests ([#1899](https://github.com/openai/openai-python/issues/1899)) ([e2496f1](https://github.com/openai/openai-python/commit/e2496f1d274126bdaa46a8256b3dd384b4ae244b))
+
+
+### Documentation
+
+* **assistants:** correct on_text_delta example ([#1896](https://github.com/openai/openai-python/issues/1896)) ([460b663](https://github.com/openai/openai-python/commit/460b663567ed1031467a8d69eb13fd3b3da38827))
+
 ## 1.55.1 (2024-11-25)
 
 Full Changelog: [v1.55.0...v1.55.1](https://github.com/openai/openai-python/compare/v1.55.0...v1.55.1)
diff --git a/mypy.ini b/mypy.ini
index 97e5de4a60..50e5add04b 100644
--- a/mypy.ini
+++ b/mypy.ini
@@ -5,7 +5,10 @@ show_error_codes = True
 # Exclude _files.py and _logs.py because mypy isn't smart enough to apply
 # the correct type narrowing and as this is an internal module
 # it's fine to just use Pyright.
-exclude = ^(src/openai/_files\.py|src/openai/_utils/_logs\.py|_dev/.*\.py)$
+#
+# We also exclude our `tests` as mypy doesn't always infer
+# types correctly and Pyright will still catch any type errors.
+exclude = ^(src/openai/_files\.py|src/openai/_utils/_logs\.py|_dev/.*\.py|tests/.*)$
 
 strict_equality = True
 implicit_reexport = True
diff --git a/pyproject.toml b/pyproject.toml
index fb48acf1f2..4842cceea4 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "openai"
-version = "1.55.1"
+version = "1.55.2"
 description = "The official Python library for the openai API"
 dynamic = ["readme"]
 license = "Apache-2.0"
diff --git a/src/openai/_version.py b/src/openai/_version.py
index f3c5f8db8b..5b04f5cc00 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__ = "1.55.1"  # x-release-please-version
+__version__ = "1.55.2"  # x-release-please-version
diff --git a/src/openai/lib/streaming/_assistants.py b/src/openai/lib/streaming/_assistants.py
index 103e4c40aa..6efb3ca3f1 100644
--- a/src/openai/lib/streaming/_assistants.py
+++ b/src/openai/lib/streaming/_assistants.py
@@ -243,7 +243,7 @@ def on_text_delta(self, delta: TextDelta, snapshot: Text) -> None:
         on_text_delta(TextDelta(value=" solution"), Text(value="The solution")),
         on_text_delta(TextDelta(value=" to"), Text(value="The solution to")),
         on_text_delta(TextDelta(value=" the"), Text(value="The solution to the")),
-        on_text_delta(TextDelta(value=" equation"), Text(value="The solution to the equivalent")),
+        on_text_delta(TextDelta(value=" equation"), Text(value="The solution to the equation")),
         """
 
     def on_text_done(self, text: Text) -> None: