diff --git a/pyproject.toml b/pyproject.toml
index bc56de21..bcf1fe83 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -20,7 +20,7 @@ dependencies = [
     "pydantic>=2.9.2,<3.0.0",
     "httpx>=0.28.0,<1.0.0",
     "logfire>=3.5.3,<=3.20.0",
-    "python-ulid>=3.0.0,<4.0.0",
+    "python-ulid>=4.1.0,<4.2.0",
     "coolname>=2.2.0,<3.0.0",
     "pandas>=2.2.3,<3.0.0",
     "fsspec[s3]>=2023.1.0,<=2025.12.0",