diff --git a/entrypoint.sh b/entrypoint.sh
index 9430419..ad63c88 100644
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -4,7 +4,7 @@ set -e
 mkdir -p ~/.config/itch
 echo $BUTLER_CREDENTIALS > ~/.config/itch/butler_creds
 
-butler upgrade -y
+butler upgrade --assume-yes
 
 versionArgument=""