diff --git a/python/requirements.txt b/python/requirements.txt
index 59ce5d7448f18..e78259a5028cd 100644
--- a/python/requirements.txt
+++ b/python/requirements.txt
@@ -60,5 +60,5 @@ starlette
 typer
 fsspec
 pandas>=1.3
-pydantic
+pydantic<2
 py-spy>=0.2.0
diff --git a/python/setup.py b/python/setup.py
index 01d02d4276e50..272005901bb8e 100644
--- a/python/setup.py
+++ b/python/setup.py
@@ -250,7 +250,7 @@ def get_packages(self):
             "requests",
             "gpustat >= 1.0.0",  # for windows
             "opencensus",
-            "pydantic",
+            "pydantic < 2",  # 2.0.0 brings breaking changes
             "prometheus_client >= 0.7.1",
             "smart_open",
             "virtualenv >=20.0.24, < 20.21.1",  # For pip runtime env.