diff --git a/topic/machine-learning/llm-langchain/requirements.txt b/topic/machine-learning/llm-langchain/requirements.txt
index 6de4a2e3..f154d1ea 100644
--- a/topic/machine-learning/llm-langchain/requirements.txt
+++ b/topic/machine-learning/llm-langchain/requirements.txt
@@ -13,7 +13,7 @@ requests<3
 requests-cache<2
 sqlalchemy==2.*
 sqlalchemy-cratedb==0.38.0
-unstructured<0.15
+unstructured<0.16
 
 # Development.
 # cratedb-toolkit @ git+https://github.com/crate-workbench/cratedb-toolkit.git@main