diff --git a/backend/requirements/default.txt b/backend/requirements/default.txt
index aa943bff8cc..212ba1fb046 100644
--- a/backend/requirements/default.txt
+++ b/backend/requirements/default.txt
@@ -83,7 +83,7 @@ supervisor==4.2.5
 tiktoken==0.7.0
 timeago==1.0.16
 transformers==4.49.0
-unstructured==0.15.1
+unstructured==0.18.18
 unstructured-client==0.25.4
 uvicorn==0.21.1
 zulip==0.8.2