diff --git a/requirements.lite.txt b/requirements.lite.txt
index 661be35..c65e60b 100644
--- a/requirements.lite.txt
+++ b/requirements.lite.txt
@@ -11,7 +11,7 @@ psycopg2-binary==2.9.9
 pgvector==0.2.5
 uvicorn==0.28.0
 pypdf==6.0.0
-unstructured==0.16.11
+unstructured==0.18.18
 markdown==3.8.2
 networkx==3.2.1
 pandas==2.2.1
diff --git a/requirements.txt b/requirements.txt
index 0f81157..c88817e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -13,7 +13,7 @@ psycopg2-binary==2.9.9
 pgvector==0.2.5
 uvicorn==0.28.0
 pypdf==6.0.0
-unstructured==0.16.11
+unstructured==0.18.18
 markdown==3.8.2
 networkx==3.2.1
 pandas==2.2.1