diff --git a/requirements.txt b/requirements.txt
index ff0d84a..9e30eb2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,5 +2,6 @@ colorama==0.4.6
 openai==0.27.4
 python-dotenv==1.0.0
 retry==0.9.2
+ruamel.base==1.0.0
 tiktoken==0.3.3
 tqdm==4.65.0