diff --git a/script-install-banner b/script-install-banner
index 3d15fac2..278f0f91 100644
--- a/script-install-banner
+++ b/script-install-banner
@@ -20,41 +20,8 @@ else
 fi
 
 cat <<- 'EOF' > "$banner"
-#!/usr/bin/env bash
-if ! type -t readarray >/dev/null; then
-  readarray() {
-    local cmd opt t v=MAPFILE
-    while [ -n "$1" ]; do
-      case "$1" in
-      -h|--help) echo "minimal substitute readarray for older bash"; exit; ;;
-      -r) shift; opt="$opt -r"; ;;
-      -t) shift; t=1; ;;
-      -u) 
-          shift; 
-          if [ -n "$1" ]; then
-            opt="$opt -u $1"; 
-            shift
-          fi
-          ;;
-      *)
-          if [[ "$1" =~ ^[A-Za-z_]+$ ]]; then
-            v="$1"
-            shift
-          else
-            echo -en "${C_BOLD}${C_RED}Error: ${C_RESET}Unknown option: '$1'\n" 1>&2
-            exit
-          fi
-          ;;
-      esac
-    done
-    cmd="read $opt"
-    eval "$v=()"
-    while IFS= eval "$cmd line"; do      
-      line=$(echo "$line" | sed -e "s#\([\"\`]\)#\\\\\1#g" )
-      eval "${v}+=(\"$line\")"
-    done
-  }
-fi
+#!/usr/bin/env bash5
+
 echo -n '
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