diff --git a/pyproject.toml b/pyproject.toml
index 120bc94..2f45324 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -8,7 +8,7 @@ dependencies = [
     "aiofiles==24.1.0",
     "annotated-types==0.7.0",
     "anyio==4.9.0",
-    "authlib==1.5.2",
+    "authlib==1.6.5",
     "cachetools==5.5.2",
     "certifi==2025.4.26",
     "cffi==1.17.1",