diff --git a/modules/io/package.json b/modules/io/package.json
index 0906fd3ed..556b836b5 100644
--- a/modules/io/package.json
+++ b/modules/io/package.json
@@ -15,9 +15,9 @@
     "node.js"
   ],
   "dependencies": {
-    "@loaders.gl/core": "^2.3.13",
-    "@loaders.gl/loader-utils": "^2.3.13",
-    "@loaders.gl/images": "^2.3.13",
+    "@loaders.gl/core": "^3.1.4",
+    "@loaders.gl/images": "^3.1.4",
+    "@loaders.gl/loader-utils": "^3.1.4",
     "@xviz/io": "1.0.10",
     "@xviz/schema": "1.0.10",
     "base64-js": "^1.3.0",
diff --git a/modules/io/src/gltf/glb-builder.js b/modules/io/src/gltf/glb-builder.js
index 3dc11378f..6bd0d5b5e 100644
--- a/modules/io/src/gltf/glb-builder.js
+++ b/modules/io/src/gltf/glb-builder.js
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 /* eslint-disable camelcase, max-statements */
-import {padTo4Bytes, copyToArray} from '@loaders.gl/loader-utils';
+import {padToNBytes, copyToArray} from '@loaders.gl/loader-utils';
 import {isImage} from '@loaders.gl/images';
 import {getAccessorTypeFromSize, getComponentTypeFromArray} from './gltf-utils/gltf-utils';
 import encodeGLBSync from './encode-glb';
@@ -132,7 +132,7 @@ export default class GLBBuilder {
 
     // We've now written the contents to the body, so update the total length
     // Every sub-chunk needs to be 4-byte aligned
-    this.byteLength += padTo4Bytes(byteLength);
+    this.byteLength += padToNBytes(byteLength, 4);
 
     // Add this buffer to the list of buffers to be written to the body.
     this.sourceBuffers.push(buffer);
diff --git a/modules/io/src/gltf/parse-glb.js b/modules/io/src/gltf/parse-glb.js
index 351f5d454..b1c2ffd71 100644
--- a/modules/io/src/gltf/parse-glb.js
+++ b/modules/io/src/gltf/parse-glb.js
@@ -14,7 +14,7 @@
 /* global TextDecoder */
 /* eslint-disable camelcase, max-statements */
 import '../common/text-encoding';
-import {padTo4Bytes, assert} from '@loaders.gl/loader-utils';
+import {padToNBytes, assert} from '@loaders.gl/loader-utils';
 
 const MAGIC_glTF = 0x676c5446; // glTF in Big-Endian ASCII
 
@@ -149,7 +149,7 @@ function parseGLBChunksSync(glb, dataView, byteOffset, options) {
       default:
     }
 
-    byteOffset += padTo4Bytes(chunkLength);
+    byteOffset += padToNBytes(chunkLength, 4);
   }
 
   return byteOffset;
diff --git a/yarn.lock b/yarn.lock
index c000babab..91428fed5 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1686,7 +1686,7 @@
     npmlog "^4.1.2"
     write-file-atomic "^2.3.0"
 
-"@loaders.gl/core@2.3.13", "@loaders.gl/core@^2.2.6", "@loaders.gl/core@^2.3.13":
+"@loaders.gl/core@2.3.13", "@loaders.gl/core@^2.2.6":
   version "2.3.13"
   resolved "https://registry.yarnpkg.com/@loaders.gl/core/-/core-2.3.13.tgz#093fe965cfab0a72c902a63d461282ae1ed55dc2"
   integrity sha512-Hjm8eJjS/OUnaHrOSgXtE+qDg5V4Do0jIpp2u0Dv3CMxPrtd2TpwkDfAyZWmmbZew9rzqPoAVMINejS/ItWUeg==
@@ -1694,6 +1694,16 @@
     "@babel/runtime" "^7.3.1"
     "@loaders.gl/loader-utils" "2.3.13"
 
+"@loaders.gl/core@^3.1.4":
+  version "3.1.4"
+  resolved "https://registry.npmmirror.com/@loaders.gl/core/download/@loaders.gl/core-3.1.4.tgz#c2c986eb1e1f4fc50a289ed8e0f9eb02f0e7457f"
+  integrity sha512-v6wWsFQMkJdtbpN8tEy9pqClMuv7EEA9BYYG0rs6gXCXHotgv0d+YiHXVgTPygdSxvOLBiFf/tQsbdk9EbVMjw==
+  dependencies:
+    "@babel/runtime" "^7.3.1"
+    "@loaders.gl/loader-utils" "3.1.4"
+    "@loaders.gl/worker-utils" "3.1.4"
+    probe.gl "^3.4.0"
+
 "@loaders.gl/draco@2.3.13":
   version "2.3.13"
   resolved "https://registry.yarnpkg.com/@loaders.gl/draco/-/draco-2.3.13.tgz#fcc08c0a3b438e3d7ed099dbafc1f83205b5f41b"
@@ -1713,14 +1723,21 @@
     "@loaders.gl/images" "2.3.13"
     "@loaders.gl/loader-utils" "2.3.13"
 
-"@loaders.gl/images@2.3.13", "@loaders.gl/images@^2.3.13":
+"@loaders.gl/images@2.3.13":
   version "2.3.13"
   resolved "https://registry.yarnpkg.com/@loaders.gl/images/-/images-2.3.13.tgz#3b827cf1e8d31c8f1adf85136c7fd53c08dbb0a8"
   integrity sha512-BBgLf17udhRnYwvsObAOM7jEeLBaeU3di1NyLhpTMa7WbG3jAnDlmy1BRue8wYfgVpWnmk18YubZtX6vCRrJnA==
   dependencies:
     "@loaders.gl/loader-utils" "2.3.13"
 
-"@loaders.gl/loader-utils@2.3.13", "@loaders.gl/loader-utils@^2.3.13":
+"@loaders.gl/images@^3.1.4":
+  version "3.1.4"
+  resolved "https://registry.npmmirror.com/@loaders.gl/images/download/@loaders.gl/images-3.1.4.tgz#82fe2386e65ece9cca977c47edfee2fb6fc60046"
+  integrity sha512-2xitqD+WZIqPn6OvvCEUzI7Y++8KMMzTrzt4qnb7Xtt/KMsk+LeGX8sVl1tAroABuViU0QaQuWS47n3GPJXdnQ==
+  dependencies:
+    "@loaders.gl/loader-utils" "3.1.4"
+
+"@loaders.gl/loader-utils@2.3.13":
   version "2.3.13"
   resolved "https://registry.yarnpkg.com/@loaders.gl/loader-utils/-/loader-utils-2.3.13.tgz#5cf6403b1c19b2fe5abacbd89e6252b8ca50db96"
   integrity sha512-vXzH5CWG8pWjUEb7hUr6CM4ERj4NVRpA60OxvVv/OaZZ7hNN63+9/tSUA5IXD9QArWPWrFBnKnvE+5gg4WNqTg==
@@ -1728,6 +1745,15 @@
     "@babel/runtime" "^7.3.1"
     "@probe.gl/stats" "^3.3.0"
 
+"@loaders.gl/loader-utils@3.1.4", "@loaders.gl/loader-utils@^3.1.4":
+  version "3.1.4"
+  resolved "https://registry.npmmirror.com/@loaders.gl/loader-utils/download/@loaders.gl/loader-utils-3.1.4.tgz#66a1929ba6c60f065d28255c815101747f91619b"
+  integrity sha512-XLWgW8Z0CcFBGYev8wrlKgZot/TwXAsIvzDdoNqYboYQHvzNHzJLbGY1VBx2+rSSHfgTsypJIlh/mkRB9z4DJg==
+  dependencies:
+    "@babel/runtime" "^7.3.1"
+    "@loaders.gl/worker-utils" "3.1.4"
+    "@probe.gl/stats" "^3.5.0"
+
 "@loaders.gl/polyfills@^2.2.6":
   version "2.3.13"
   resolved "https://registry.yarnpkg.com/@loaders.gl/polyfills/-/polyfills-2.3.13.tgz#dccd63e4fffecb89cac06dc594673c8c3dfe90f6"
@@ -1741,6 +1767,13 @@
     through "^2.3.8"
     web-streams-polyfill "^3.0.0"
 
+"@loaders.gl/worker-utils@3.1.4":
+  version "3.1.4"
+  resolved "https://registry.npmmirror.com/@loaders.gl/worker-utils/download/@loaders.gl/worker-utils-3.1.4.tgz#40fc721c1e2e7b4e4c2248d165ed55bce63fa4a7"
+  integrity sha512-U0ezUcYWfTgcqLdsD88ppJnjEF3e1SssJFlHlJ5BIwVgsYtn/AqxGB0Y61568jwqSzQr8bJgCIpdYRQPa+omYQ==
+  dependencies:
+    "@babel/runtime" "^7.3.1"
+
 "@math.gl/core@3.5.6":
   version "3.5.6"
   resolved "https://registry.yarnpkg.com/@math.gl/core/-/core-3.5.6.tgz#d849db978d7d4a4984bb63868adc693975d97ce7"
@@ -1902,7 +1935,7 @@
     "@babel/runtime" "^7.0.0"
     "@probe.gl/env" "3.5.0"
 
-"@probe.gl/stats@3.5.0", "@probe.gl/stats@^3.3.0":
+"@probe.gl/stats@3.5.0", "@probe.gl/stats@^3.3.0", "@probe.gl/stats@^3.5.0":
   version "3.5.0"
   resolved "https://registry.yarnpkg.com/@probe.gl/stats/-/stats-3.5.0.tgz#774495772f06e898aae28c1d315c9edac07f3425"
   integrity sha512-IH2M+F3c8HR1DTroBARePUFG7wIewumtKA0UFqx51Z7S4hKrD60wFbpMmg0AcF4FvHAXMBoC+kYi1UKW9XbAOw==
@@ -9610,7 +9643,7 @@ pretty-error@^2.0.2:
     lodash "^4.17.20"
     renderkid "^2.0.4"
 
-probe.gl@^3.1.0:
+probe.gl@^3.1.0, probe.gl@^3.4.0:
   version "3.5.0"
   resolved "https://registry.yarnpkg.com/probe.gl/-/probe.gl-3.5.0.tgz#084c0ef3a233e1c055cd8a88efb67abb11eba483"
   integrity sha512-KWj8u0PNytr/rVwcQFcN7O8SK7n/ITOsUZ91l4fSX95oHhKvVCI7eadrzFUzFRlXkFfBWpMWZXFHITsHHHUctw==
@@ -11915,8 +11948,10 @@ watchpack@^1.7.4:
   resolved "https://registry.yarnpkg.com/watchpack/-/watchpack-1.7.5.tgz#1267e6c55e0b9b5be44c2023aed5437a2c26c453"
   integrity sha512-9P3MWk6SrKjHsGkLT2KHXdQ/9SNkyoJbabxnKOoJepsvJjJG8uYTR3yTPxPQvNDI3w4Nz1xnE0TLHK4RIVe/MQ==
   dependencies:
+    chokidar "^3.4.1"
     graceful-fs "^4.1.2"
     neo-async "^2.5.0"
+    watchpack-chokidar2 "^2.0.1"
   optionalDependencies:
     chokidar "^3.4.1"
     watchpack-chokidar2 "^2.0.1"