diff --git a/requirements.txt b/requirements.txt
index cffb4a8..3ea1cf5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@ sqlalchemy==2.0.36
 pydantic[email]==2.10.4
 pydantic-settings==2.7.1
 python-multipart==0.0.20
-anthropic==0.44.0
+anthropic==0.86.0
 httpx>=0.28.0
 Pillow==11.1.0
 PyMuPDF==1.25.3