diff --git a/index.js b/index.js
index 7d3d5a3..f993a5b 100644
--- a/index.js
+++ b/index.js
@@ -3,12 +3,6 @@ const { readFile } = require('fs').promises;
 const _ = require('lodash');
 const fontverter = require('fontverter');
 
-function HB_TAG(chunkName) {
-  return chunkName.split('').reduce(function (a, ch) {
-    return (a << 8) + ch.charCodeAt(0);
-  }, 0);
-}
-
 const loadAndInitializeHarfbuzz = _.once(async () => {
   const {
     instance: { exports },
@@ -52,12 +46,6 @@ async function subsetFont(
     exports.hb_set_add(inputUnicodes, c.codePointAt(0));
   }
 
-  // Enable GSUB/GPOS/GDEF subset, remove once it is enabled by upstream
-  const dropTables = exports.hb_subset_input_drop_tables_set(input);
-  exports.hb_set_del(dropTables, HB_TAG('GSUB'));
-  exports.hb_set_del(dropTables, HB_TAG('GPOS'));
-  exports.hb_set_del(dropTables, HB_TAG('GDEF'));
-
   const subset = exports.hb_subset(face, input);
 
   // Clean up
diff --git a/package.json b/package.json
index b5cc6f1..685ae14 100644
--- a/package.json
+++ b/package.json
@@ -5,7 +5,7 @@
   "main": "index.js",
   "dependencies": {
     "fontverter": "^2.0.0",
-    "harfbuzzjs": "^0.1.4",
+    "harfbuzzjs": "^0.1.5",
     "p-limit": "^3.1.0"
   },
   "devDependencies": {