diff --git a/preinstall.sh b/preinstall.sh
index 05e44203..2b987d23 100755
--- a/preinstall.sh
+++ b/preinstall.sh
@@ -3,9 +3,9 @@
 # Use of this script is deprecated
 
 echo
-echo "WARNING: This script will stop working at the end of 2016"
+echo "WARNING: THIS SCRIPT WILL STOP WORKING AT THE END OF 2016"
 echo
-echo "WARNING: This script is no longer required on most 64-bit Linux systems when using sharp v0.12.0+"
+echo "WARNING: THIS SCRIPT IS NO LONGER REQUIRED ON MOST 64-BIT LINUX SYSTEMS WHEN USING SHARP V0.12.0+"
 echo
 echo "See http://sharp.dimens.io/page/install#linux"
 echo
@@ -14,9 +14,9 @@ echo "to globally install libvips if not already available."
 echo
 sleep 5
 
-vips_version_minimum=8.3.3
-vips_version_latest_major_minor=8.3
-vips_version_latest_patch=3
+vips_version_minimum=8.4.2
+vips_version_latest_major_minor=8.4
+vips_version_latest_patch=2
 
 openslide_version_minimum=3.4.0
 openslide_version_latest_major_minor=3.4