diff --git a/setup.py b/setup.py
index 35e7fcd..ba17532 100644
--- a/setup.py
+++ b/setup.py
@@ -46,7 +46,7 @@
         'pdfminer.six',
         'langchain_experimental',
         'scikit-learn',
-        'ragas==0.1.7',
+        'ragas==0.1.16',
         'inquirer',
         'chromadb',
         'sentence-transformers',
@@ -56,7 +56,6 @@
         'llmlingua',
         'langchain-huggingface',
         'rank_bm25',
-        'ragas',
         'pandas',
         'pillow_heif',
         'opencv-python',
diff --git a/src/ragbuilder/eval.py b/src/ragbuilder/eval.py
index 645f5cd..78fa674 100644
--- a/src/ragbuilder/eval.py
+++ b/src/ragbuilder/eval.py
@@ -147,7 +147,7 @@ def evaluate(self):
             raise_exceptions=False, 
             llm=self.llm,
             embeddings=self.embeddings,
-            is_async=self.is_async,
+            # is_async=self.is_async, is_async is not supported in ragas.evaluate in 0.1.16
             run_config=self.run_config
         )