diff --git a/backend/requirements.txt b/backend/requirements.txt
index 35e413e..39cdaef 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -1,7 +1,7 @@
 # the llm frameworks and openai library are fixed to a specific version here
 # since they are currently under massive development
 openai==0.28.0
-marvin==1.*
+marvin==01.04.00
 fastapi>=0.99.1
 pydantic
 python-dotenv