diff --git a/requirements.txt b/requirements.txt
index aa528c1..037e495 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -16,7 +16,7 @@ contexttimer
 ipython
 pyyaml>=6
 pandas
-gradio
+gradio==4.*
 gitpython # for the reproducibility script
 requests
-matplotlib
\ No newline at end of file
+matplotlib