diff --git a/app/backend/requirements.txt b/app/backend/requirements.txt
index 3612dc07d0..9f043afab4 100644
--- a/app/backend/requirements.txt
+++ b/app/backend/requirements.txt
@@ -124,7 +124,7 @@ hpack==4.1.0
     # via h2
 httpcore==1.0.9
     # via httpx
-httpx==0.27.0
+httpx==0.28.1
     # via
     #   microsoft-kiota-http
     #   msgraph-core