diff --git a/constraints.txt b/constraints.txt
index 5a38e75..e154275 100644
--- a/constraints.txt
+++ b/constraints.txt
@@ -11,7 +11,7 @@ annotated-types==0.7.0
 anyio==4.11.0
 asteroid-filterbanks==0.4.0
 attrs==25.4.0
-Authlib==1.6.5
+Authlib==1.6.9
 av==16.0.1
 certifi==2025.10.5
 cffi==2.0.0
diff --git a/requirements.txt b/requirements.txt
index e4b30ef..54fbc3a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -27,7 +27,7 @@ pydantic-settings==2.11.0
 requests==2.32.5
 
 # Authentication
-Authlib==1.6.5
+Authlib==1.6.9
 itsdangerous==2.2.0  # Required for session middleware
 
 # Billing