diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 5c9b107c0d..41be9f1017 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "1.99.0"
+  ".": "1.99.1"
 }
\ No newline at end of file
diff --git a/CHANGELOG.md b/CHANGELOG.md
index e7a49bcc9a..4585135511 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog
 
+## 1.99.1 (2025-08-05)
+
+Full Changelog: [v1.99.0...v1.99.1](https://github.com/openai/openai-python/compare/v1.99.0...v1.99.1)
+
+### Bug Fixes
+
+* **internal:** correct event imports ([2a6d143](https://github.com/openai/openai-python/commit/2a6d1436288a07f67f6afefe5c0b5d6ae32d7e70))
+
 ## 1.99.0 (2025-08-05)
 
 Full Changelog: [v1.98.0...v1.99.0](https://github.com/openai/openai-python/compare/v1.98.0...v1.99.0)
diff --git a/examples/image_stream.py b/examples/image_stream.py
index c188e68717..eab5932534 100644
--- a/examples/image_stream.py
+++ b/examples/image_stream.py
@@ -50,4 +50,4 @@ def main() -> None:
     try:
         main()
     except Exception as error:
-        print(f"Error generating image: {error}")
\ No newline at end of file
+        print(f"Error generating image: {error}")
diff --git a/pyproject.toml b/pyproject.toml
index 5e0f1fe3ea..c71e8c135b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "openai"
-version = "1.99.0"
+version = "1.99.1"
 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 a5c9b3df71..3fa80adba0 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__ = "1.99.0"  # x-release-please-version
+__version__ = "1.99.1"  # x-release-please-version
diff --git a/src/openai/lib/streaming/responses/_events.py b/src/openai/lib/streaming/responses/_events.py
index 4c8a588944..de3342ec9d 100644
--- a/src/openai/lib/streaming/responses/_events.py
+++ b/src/openai/lib/streaming/responses/_events.py
@@ -31,11 +31,9 @@
     ResponseAudioTranscriptDoneEvent,
     ResponseAudioTranscriptDeltaEvent,
     ResponseMcpCallArgumentsDoneEvent,
-    ResponseReasoningSummaryDoneEvent,
     ResponseImageGenCallCompletedEvent,
     ResponseMcpCallArgumentsDeltaEvent,
     ResponseMcpListToolsCompletedEvent,
-    ResponseReasoningSummaryDeltaEvent,
     ResponseImageGenCallGeneratingEvent,
     ResponseImageGenCallInProgressEvent,
     ResponseMcpListToolsInProgressEvent,
@@ -59,6 +57,8 @@
     ResponseCodeInterpreterCallInProgressEvent,
     ResponseCodeInterpreterCallInterpretingEvent,
 )
+from ....types.responses.response_reasoning_text_done_event import ResponseReasoningTextDoneEvent
+from ....types.responses.response_reasoning_text_delta_event import ResponseReasoningTextDeltaEvent
 
 TextFormatT = TypeVar(
     "TextFormatT",
@@ -137,8 +137,8 @@ class ResponseCompletedEvent(RawResponseCompletedEvent, GenericModel, Generic[Te
         ResponseMcpListToolsInProgressEvent,
         ResponseOutputTextAnnotationAddedEvent,
         ResponseQueuedEvent,
-        ResponseReasoningSummaryDeltaEvent,
-        ResponseReasoningSummaryDoneEvent,
+        ResponseReasoningTextDeltaEvent,
+        ResponseReasoningTextDoneEvent,
     ],
     PropertyInfo(discriminator="type"),
 ]