diff --git a/pyproject.toml b/pyproject.toml
index 7141cb2..8a977f3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -23,7 +23,7 @@ classifiers = [
 python = "^3.8.0"
 httpx = "0.23.0"
 pydantic = "1.10.13"
-Authlib = ">=0.15.3,<1.4.0"
+Authlib = ">=1.4.0,<2.0.0"
 importlib-resources = "^5.1.2"
 click = "^8.1.3"
 junit-xml = "^1.9"