diff --git a/preinstall.sh b/preinstall.sh
old mode 100644
new mode 100755
index 639e226..7547f23
--- a/preinstall.sh
+++ b/preinstall.sh
@@ -1,8 +1,8 @@
 #!/bin/bash
 
-vips_version_minimum=8.4.2
-vips_version_latest_major_minor=8.6
-vips_version_latest_patch=5
+vips_version_minimum=8.7.2
+vips_version_latest_major_minor=8.7
+vips_version_latest_patch=2
 vips_version_full="$vips_version_latest_major_minor.$vips_version_latest_patch"
 
 openslide_version_minimum=3.4.0