diff --git a/02-topgrade.sh b/02-topgrade.sh
index cb63015..e81e524 100644
--- a/02-topgrade.sh
+++ b/02-topgrade.sh
@@ -31,7 +31,7 @@ if [ ! -f "$topgrade_binary" ]; then
 else
   current_version=$($topgrade_binary --version | sed 's/[^0-9]*//g')
   echo $current_version
-  newest_release=$(curl -sL https://api.github.com/repos/$topgrade_git_owner/$topgrade_git_repo/releases/latest | jq -r ".tag_name" | sed 's/[^0-9]*//g')
+  newest_release=$(curl -sL https://api.github.com/repos/$topgrade_git_owner/$topgrade_git_repo/releases/latest | jq -r ".tag_name" | sed 's/[A-Za-z]*//g')
   echo $newest_release
 fi