diff --git a/package-lock.json b/package-lock.json
index 8a2ddfb..2cd7bb2 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
 	"name": "terrain50-cli",
-	"version": "1.6.5",
+	"version": "1.6.6",
 	"lockfileVersion": 1,
 	"requires": true,
 	"dependencies": {
diff --git a/package.json b/package.json
index 856a559..bd83b9c 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "terrain50-cli",
-	"version": "1.6.5",
+	"version": "1.6.6",
 	"description": "CLI for parsing Ordnance Survey Digital Elevation Model files",
 	"main": "src/index.mjs",
 	"scripts": {