diff --git a/pyproject.toml b/pyproject.toml
index 20c56a9cba..462a958e97 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -40,7 +40,7 @@ dependencies = [
     "protego>=0.5.0",
     "psutil>=6.0.0",
     "pydantic-settings>=2.2.0,!=2.7.0,!=2.7.1,!=2.8.0",
-    "pydantic>=2.11.0",
+    "pydantic>=2.11.0,<2.12.0",
     "pyee>=9.0.0",
     "tldextract>=5.1.0",
     "typing-extensions>=4.1.0",
diff --git a/uv.lock b/uv.lock
index a1d46629aa..dbc7199a70 100644
--- a/uv.lock
+++ b/uv.lock
@@ -832,7 +832,7 @@ requires-dist = [
     { name = "playwright", marker = "extra == 'playwright'", specifier = ">=1.27.0" },
     { name = "protego", specifier = ">=0.5.0" },
     { name = "psutil", specifier = ">=6.0.0" },
-    { name = "pydantic", specifier = ">=2.11.0" },
+    { name = "pydantic", specifier = ">=2.11.0,<2.12.0" },
     { name = "pydantic-settings", specifier = ">=2.2.0,!=2.7.0,!=2.7.1,!=2.8.0" },
     { name = "pyee", specifier = ">=9.0.0" },
     { name = "rich", marker = "extra == 'cli'", specifier = ">=13.9.0" },