diff --git a/appveyor.yml b/appveyor.yml
index a42a1940..0cc02787 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -3,8 +3,8 @@ version: "{build}"
 build: off
 platform: x64
 environment:
-  VIPS_VERSION_MAJOR_MINOR: 8.0
-  VIPS_VERSION_PATCH: 2
+  VIPS_VERSION_MAJOR_MINOR: 8.1
+  VIPS_VERSION_PATCH: 1
   VIPS_WARNING: 0
   matrix:
   - nodejs_version: "0.12"
diff --git a/preinstall.sh b/preinstall.sh
index 127a62f1..2bbff4af 100755
--- a/preinstall.sh
+++ b/preinstall.sh
@@ -15,7 +15,7 @@
 
 vips_version_minimum=7.40.0
 vips_version_latest_major_minor=8.1
-vips_version_latest_patch=0
+vips_version_latest_patch=1
 
 openslide_version_minimum=3.4.0
 openslide_version_latest_major_minor=3.4