diff --git a/entrypoint.sh b/entrypoint.sh
index ae49281..31dd97b 100755
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -17,7 +17,7 @@ main() {
     echo "could not read previous version"; exit 1
   fi
 
-  possible_release_types="major feature bug alpha beta rc"
+  possible_release_types="major feature bug alpha beta pre rc"
 
   if [[ ! ${possible_release_types[*]} =~ ${release_type} ]]; then
     echo "valid argument: [ ${possible_release_types[*]} ]"; exit 1