diff --git a/upgrade/upgrade.sh b/upgrade/upgrade.sh
index b4cab9c..377399d 100755
--- a/upgrade/upgrade.sh
+++ b/upgrade/upgrade.sh
@@ -56,7 +56,7 @@ function migration_assert() {
     local logfile=$work_path/log/forgejo.log
 
     grep --quiet 'ORM engine initialization successful' $logfile
-    if grep --fixed-strings 'serveInstalled() [W] Table' $logfile; then
+    if grep 'serveInstalled() \[[EW]\] Table' $logfile; then
         echo "unexpected warnings in database migration"
         return 1
     fi