diff --git a/backend/requirements.txt b/backend/requirements.txt
index 04fc201..37d1d5d 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -19,7 +19,7 @@ email-validator==2.3.0
 reportlab==4.5.0
 # Streaming multipart parser — used by upload_artifact for true mid-wire size-limit abort.
 # Pinned to <2.0 to avoid breaking API changes; Dependabot will bump the minor.
-streaming-form-data>=1.16,<2.0
+streaming-form-data>=2.0.0,<3.0
 
 # Optional dependencies for LLM embeddings
 # Uncomment the lines below if using LLM-based similarity