diff --git a/backend/requirements.txt b/backend/requirements.txt
index 8876f5d8ac..8821cf1cd8 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -63,7 +63,7 @@ fpdf2==2.8.2
 pymdown-extensions==10.14.2
 docx2txt==0.8
 python-pptx==1.0.2
-unstructured==0.16.17
+unstructured==0.18.15
 nltk==3.9.1
 Markdown==3.9
 pypandoc==1.15
diff --git a/pyproject.toml b/pyproject.toml
index cd5a08fba2..44d5b15cfc 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -73,7 +73,7 @@ dependencies = [
     "pymdown-extensions==10.14.2",
     "docx2txt==0.8",
     "python-pptx==1.0.2",
-    "unstructured==0.16.17",
+    "unstructured==0.18.15",
     "nltk==3.9.1",
     "Markdown==3.9",
     "pypandoc==1.15",