diff --git a/pyproject.toml b/pyproject.toml
index 0c82b8c..3ed100f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -74,7 +74,7 @@ dev = [
     "pytest-xdist>=3.6.1",
 ]
 pydantic-v1 = [
-    "pydantic>=1.9.0,<2",
+    "pydantic>=1.9.0,<3",
 ]
 pydantic-v2 = [
     "pydantic~=2.0 ; python_full_version < '3.14'",