diff --git a/requirements-dev.txt b/requirements-dev.txt
index 0cb3b43dce654..90f7d4100df5e 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -389,7 +389,7 @@ pycparser==2.20
     # via
     #   -c requirements.txt
     #   cffi
-pydantic==2.10.2
+pydantic==2.9.2
     # via
     #   -c requirements.txt
     #   datamodel-code-generator
@@ -400,7 +400,7 @@ pydantic==2.10.2
     #   openai
     #   pydantic-settings
     #   ragas
-pydantic-core==2.27.1
+pydantic-core==2.23.4
     # via
     #   -c requirements.txt
     #   pydantic
diff --git a/requirements.in b/requirements.in
index 23da900e026a2..3b827de57dbb6 100644
--- a/requirements.in
+++ b/requirements.in
@@ -67,7 +67,7 @@ pymssql==2.3.1
 PyMySQL==1.1.1
 psycopg[binary]==3.1.20
 pyarrow==17.0.0
-pydantic==2.10.2
+pydantic==2.9.2
 pyjwt==2.4.0
 pyodbc==5.1.0
 python-dateutil>=2.8.2
diff --git a/requirements.txt b/requirements.txt
index 0eba9ddb3f29c..da95ee2a7d75d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -499,7 +499,7 @@ pyasn1-modules==0.3.0
     # via google-auth
 pycparser==2.20
     # via cffi
-pydantic==2.10.2
+pydantic==2.9.2
     # via
     #   -r requirements.in
     #   langchain
@@ -507,7 +507,7 @@ pydantic==2.10.2
     #   langfuse
     #   langsmith
     #   openai
-pydantic-core==2.27.1
+pydantic-core==2.23.4
     # via pydantic
 pyjwt==2.4.0
     # via