diff --git a/pyproject.toml b/pyproject.toml
index ca4f19131..f390fba5a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -28,7 +28,7 @@ dependencies = [
     "anyio>=4.8.0, <5.0.0",
     "google-auth[requests]>=2.48.1, <3.0.0",
     "httpx>=0.28.1, <1.0.0",
-    "pydantic>=2.9.0, <3.0.0",
+    "pydantic>=2.12.5, <3.0.0",
     "requests>=2.28.1, <3.0.0",
     "tenacity>=8.2.3, <9.2.0",
     "websockets>=13.0.0, <17.0",