diff --git a/pyproject.toml b/pyproject.toml
index a9ad958c..17cf75f5 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -141,7 +141,7 @@ evaluation = [
     # OpenAI >=3.19. Ragas 0.2.7-0.3.1 also patches asyncio at import time.
     "ragas>=0.2.6,<0.2.7",
     # The compatible Ragas adapter imports legacy Vertex integration modules.
-    "langchain-community>=0.3.31,<0.4",
+    "langchain-community>=0.3.31,<0.5",
     "langchain-anthropic>=0.3",
     "langchain-ollama>=0.3",
     "langchain-openai>=0.3",