diff --git a/environment.yaml b/environment.yaml
index d66ab52..dc23260 100644
--- a/environment.yaml
+++ b/environment.yaml
@@ -11,7 +11,7 @@ dependencies:
   - pytest
   - typer
   - pip:
-      - litellm
+      - litellm>=1.40.6
       - jupyter
       - numpydoc
       - semanticscholar>=0.8.1
diff --git a/just_agents/tools/search.py b/just_agents/tools/search.py
index 5d6d46f..893c102 100644
--- a/just_agents/tools/search.py
+++ b/just_agents/tools/search.py
@@ -119,4 +119,4 @@ def literature_search(query: str, limit: int = 20):
     :param limit: limit number of results
     :return: extracts from scientific papers where SOURCE field is the id of the paper
     """
-    hybrid_search(text=query, limit=limit)
+    return hybrid_search(text=query, limit=limit)