diff --git a/trustgraph-flow/pyproject.toml b/trustgraph-flow/pyproject.toml
index f447a8ef..dc131a9e 100644
--- a/trustgraph-flow/pyproject.toml
+++ b/trustgraph-flow/pyproject.toml
@@ -27,7 +27,7 @@ dependencies = [
     "langchain-text-splitters",
     "mcp",
     "minio",
-    "mistralai",
+    "mistralai<2.0.0",
     "neo4j",
     "nltk",
     "ollama",