diff --git a/backend/requirements.txt b/backend/requirements.txt
index 499eae36dec..fa9c4fc1b68 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -89,7 +89,7 @@ onnxruntime==1.20.1
 faster-whisper==1.1.1
 
 PyJWT[crypto]==2.10.1
-authlib==1.4.1
+authlib==1.6.4
 
 black==25.1.0
 langfuse==2.44.0
diff --git a/pyproject.toml b/pyproject.toml
index 52260e45e22..50a8b7f4715 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -95,7 +95,7 @@ dependencies = [
     "faster-whisper==1.1.1",
 
     "PyJWT[crypto]==2.10.1",
-    "authlib==1.4.1",
+    "authlib==1.6.4",
 
     "black==25.1.0",
     "langfuse==2.44.0",