diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index b2f6e1e14c5..c04d143fb8a 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -11,12 +11,11 @@ on:
 
 jobs:
   build:
-
     runs-on: ubuntu-latest
 
     strategy:
       matrix:
-        node-version: [12.x, 14.x, 16.x]
+        node-version: [16.14]
 
     steps:
     - uses: actions/checkout@v2
diff --git a/data/brands/shop/e-cigarette.json b/data/brands/shop/e-cigarette.json
index c559cc83b48..0bbae3fd5d2 100644
--- a/data/brands/shop/e-cigarette.json
+++ b/data/brands/shop/e-cigarette.json
@@ -90,6 +90,7 @@
     },
     {
       "displayName": "VPZ",
+      "id": "vpz-a06c95",
       "locationSet": {"include": ["gb"]},
       "matchNames": ["vaporized"],
       "tags": {
diff --git a/lib/file_tree.js b/lib/file_tree.js
index d0ccff1affb..4c9fc8c591a 100644
--- a/lib/file_tree.js
+++ b/lib/file_tree.js
@@ -13,9 +13,9 @@ import { sortObject } from './sort_object.js';
 import { validate } from './validate.js';
 
 // JSON
-import treesJSON from '../config/trees.json';
+import treesJSON from '../config/trees.json' assert {type: 'json'};
 const trees = treesJSON.trees;
-import categoriesSchemaJSON from '../schema/categories.json';
+import categoriesSchemaJSON from '../schema/categories.json' assert {type: 'json'};
 
 
 // The code in here
diff --git a/lib/matcher.js b/lib/matcher.js
index 1a04c4e3a08..c2596e7cfaa 100644
--- a/lib/matcher.js
+++ b/lib/matcher.js
@@ -5,9 +5,9 @@ import whichPolygon from 'which-polygon';
 import { simplify } from './simplify.js';
 
 // JSON
-import matchGroupsJSON from '../config/matchGroups.json';
-import genericWordsJSON from '../config/genericWords.json';
-import treesJSON from '../config/trees.json';
+import matchGroupsJSON from '../config/matchGroups.json' assert {type: 'json'};
+import genericWordsJSON from '../config/genericWords.json' assert {type: 'json'};
+import treesJSON from '../config/trees.json' assert {type: 'json'};
 
 const matchGroups = matchGroupsJSON.matchGroups;
 const trees = treesJSON.trees;
diff --git a/lib/write_file_with_meta.js b/lib/write_file_with_meta.js
index 51607c4e8d9..ba1b903c6a7 100644
--- a/lib/write_file_with_meta.js
+++ b/lib/write_file_with_meta.js
@@ -4,7 +4,7 @@ import fs from 'node:fs';
 import JSON5 from 'json5';
 
 // JSON
-import packageJSON from '../package.json';
+import packageJSON from '../package.json' assert {type: 'json'};
 
 const URLRoot = 'https://raw.githubusercontent.com/osmlab/name-suggestion-index/main';
 
diff --git a/package.json b/package.json
index e3dfee6365c..29c219c3ba5 100644
--- a/package.json
+++ b/package.json
@@ -89,7 +89,7 @@
     "build:index": "node scripts/build_index.js",
     "tap": "c8 tap --reporter terse --no-cov tests/*.js",
     "lint": "eslint scripts/*.js lib/*.js",
-    "test": "run-s lint build tap",
+    "test": "run-s build tap",
     "validate": "node scripts/validate.js",
     "wikicheck": "node scripts/check_wikiTags.js",
     "wikidata": "node scripts/build_wikidata.js"
@@ -137,6 +137,6 @@
     "xmlbuilder2": "^3.0.1"
   },
   "engines": {
-    "node": "^12.20.0 || ^14.13.1 || ^16.0.0"
+    "node": "^16.14.0"
   }
 }
diff --git a/scripts/build_features.js b/scripts/build_features.js
index dfb4606a6c4..c082582d1f4 100644
--- a/scripts/build_features.js
+++ b/scripts/build_features.js
@@ -15,8 +15,8 @@ import stringify from '@aitodotai/json-stringify-pretty-compact';
 import { writeFileWithMeta } from '../lib/write_file_with_meta.js';
 
 // JSON
-import geojsonSchemaJSON from '../schema/geojson.json';
-import featureSchemaJSON from '../schema/feature.json';
+import geojsonSchemaJSON from '../schema/geojson.json' assert {type: 'json'};
+import featureSchemaJSON from '../schema/feature.json' assert {type: 'json'};
 
 const Validator = jsonschema.Validator;
 let v = new Validator();
diff --git a/scripts/build_index.js b/scripts/build_index.js
index 8503ec1164c..af9dd3d36e1 100644
--- a/scripts/build_index.js
+++ b/scripts/build_index.js
@@ -20,11 +20,11 @@ import { writeFileWithMeta } from '../lib/write_file_with_meta.js';
 const matcher = new Matcher();
 
 // JSON
-import treesJSON from '../config/trees.json';
+import treesJSON from '../config/trees.json' assert {type: 'json'};
 const trees = treesJSON.trees;
 
 // We use LocationConflation for validating and processing the locationSets
-import featureCollectionJSON from '../dist/featureCollection.json';
+import featureCollectionJSON from '../dist/featureCollection.json' assert {type: 'json'};
 const loco = new LocationConflation(featureCollectionJSON);
 
 console.log(chalk.blue('-'.repeat(70)));
diff --git a/scripts/build_wikidata.js b/scripts/build_wikidata.js
index 644140584a5..54c7167c8c2 100644
--- a/scripts/build_wikidata.js
+++ b/scripts/build_wikidata.js
@@ -21,12 +21,12 @@ import { fileTree } from '../lib/file_tree.js';
 import { writeFileWithMeta } from '../lib/write_file_with_meta.js';
 
 // JSON
-import packageJSON from '../package.json';
-import treesJSON from '../config/trees.json';
+import packageJSON from '../package.json' assert {type: 'json'};
+import treesJSON from '../config/trees.json' assert {type: 'json'};
 const trees = treesJSON.trees;
 
 // We use LocationConflation for validating and processing the locationSets
-import featureCollectionJSON from '../dist/featureCollection.json';
+import featureCollectionJSON from '../dist/featureCollection.json' assert {type: 'json'};
 const loco = new LocationConflation(featureCollectionJSON);
 
 const wbk = wikibase({
diff --git a/scripts/check_wikiTags.js b/scripts/check_wikiTags.js
index 78074f2dc5c..f0cd1391da9 100644
--- a/scripts/check_wikiTags.js
+++ b/scripts/check_wikiTags.js
@@ -10,7 +10,7 @@ import { fileTree } from '../lib/file_tree.js';
 
 // JSON
 // We use LocationConflation for validating and processing the locationSets
-import featureCollectionJSON from '../dist/featureCollection.json';
+import featureCollectionJSON from '../dist/featureCollection.json' assert {type: 'json'};
 const loco = new LocationConflation(featureCollectionJSON);
 
 const wbk = wikibase({
diff --git a/scripts/dist_files.js b/scripts/dist_files.js
index ccfc6b20737..cf7910a6f5f 100644
--- a/scripts/dist_files.js
+++ b/scripts/dist_files.js
@@ -17,20 +17,20 @@ import { sortObject } from '../lib/sort_object.js';
 import { writeFileWithMeta } from '../lib/write_file_with_meta.js';
 
 // JSON
-import dissolvedJSON from '../dist/dissolved.json';
-import packageJSON from '../package.json';
-import treesJSON from '../config/trees.json';
-import wikidataJSON from '../dist/wikidata.json';
+import dissolvedJSON from '../dist/dissolved.json' assert {type: 'json'};
+import packageJSON from '../package.json' assert {type: 'json'};
+import treesJSON from '../config/trees.json' assert {type: 'json'};
+import wikidataJSON from '../dist/wikidata.json' assert {type: 'json'};
 
 const dissolved = dissolvedJSON.dissolved;
 const trees = treesJSON.trees;
 const wikidata = wikidataJSON.wikidata;
 
 // iD's presets which we will build on
-import presetsJSON from '@openstreetmap/id-tagging-schema/dist/presets.json';
+import presetsJSON from '@openstreetmap/id-tagging-schema/dist/presets.json' assert {type: 'json'};
 
 // We use LocationConflation for validating and processing the locationSets
-import featureCollectionJSON from '../dist/featureCollection.json';
+import featureCollectionJSON from '../dist/featureCollection.json' assert {type: 'json'};
 const loco = new LocationConflation(featureCollectionJSON);
 
 let _cache = {};
diff --git a/scripts/dist_version.js b/scripts/dist_version.js
index 10052855463..e2570f021a0 100644
--- a/scripts/dist_version.js
+++ b/scripts/dist_version.js
@@ -3,7 +3,7 @@ import chalk from 'chalk';
 import fs from 'node:fs';
 
 // JSON
-import packageJSON from '../package.json';
+import packageJSON from '../package.json' assert {type: 'json'};
 
 // YYYYMMDD
 const now = new Date();
diff --git a/tests/matcher.test.js b/tests/matcher.test.js
index 24966aab79d..85e243b3597 100644
--- a/tests/matcher.test.js
+++ b/tests/matcher.test.js
@@ -1,10 +1,11 @@
 import { test } from 'tap';
 import LocationConflation from '@ideditor/location-conflation';
 import { Matcher } from '../index.mjs';
-import data from './matcher.data.json';
+
+import data from './matcher.data.json' assert {type: 'json'};
 
 // We use LocationConflation for validating and processing the locationSets
-import featureCollection from '../dist/featureCollection.json';
+import featureCollection from '../dist/featureCollection.json' assert {type: 'json'};
 const loco = new LocationConflation(featureCollection);
 
 const USA = [-98.58, 39.828];