diff --git a/requirements/common.txt b/requirements/common.txt
index 299faacf548..1d11478da4c 100644
--- a/requirements/common.txt
+++ b/requirements/common.txt
@@ -12,7 +12,7 @@ tokenizers >= 0.21.1  # Required for fast incremental detokenization.
 protobuf >= 5.29.6, !=6.30.*, !=6.31.*, !=6.32.*, !=6.33.0.*, !=6.33.1.*, !=6.33.2.*, !=6.33.3.*, !=6.33.4.* # Required by LlamaTokenizer, gRPC. CVE-2026-0994
 fastapi[standard] >= 0.115.0 # Required by FastAPI's form models in the OpenAI API server's audio transcriptions endpoint.
 aiohttp >= 3.13.3
-openai >= 2.26.0  # For Responses API with reasoning content
+openai == 2.24.0  # For Responses API with reasoning content
 pydantic >= 2.12.0
 prometheus_client >= 0.18.0
 pillow  # Required for image processing