diff --git a/package-lock.json b/package-lock.json
index 3db44f58..8b0f5a24 100644
--- a/package-lock.json
+++ b/package-lock.json
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-      "resolved": "https://registry.npmjs.org/tough-cookie/-/tough-cookie-2.3.4.tgz",
-      "integrity": "sha512-TZ6TTfI5NtZnuyy/Kecv+CnoROnyXn2DN97LontgQpCwsX2XyLYCC0ENhYkehSOwAp8rTQKc/NUIF7BkQ5rKLA==",
+      "version": "2.4.3",
+      "resolved": "https://registry.npmjs.org/tough-cookie/-/tough-cookie-2.4.3.tgz",
+      "integrity": "sha512-Q5srk/4vDM54WJsJio3XNn6K2sCG+CQ8G5Wz6bZhRZoAe/+TxjWB/GlFAnYEbkYVlON9FMk/fE3h2RLpPXo4lQ==",
       "dev": true,
       "requires": {
+        "psl": "^1.1.24",
         "punycode": "^1.4.1"
       },
       "dependencies": {
@@ -10761,8 +10767,7 @@
       "version": "0.14.5",
       "resolved": "https://registry.npmjs.org/tweetnacl/-/tweetnacl-0.14.5.tgz",
       "integrity": "sha1-WuaBd/GS1EViadEIr6k/+HQ/T2Q=",
-      "dev": true,
-      "optional": true
+      "dev": true
     },
     "type-is": {
       "version": "1.6.16",
@@ -10929,18 +10934,18 @@
       "dev": true
     },
     "unique-filename": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/unique-filename/-/unique-filename-1.1.0.tgz",
-      "integrity": "sha1-0F8v5AMlYIcfMOk8vnNe6iAVFPM=",
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/unique-filename/-/unique-filename-1.1.1.tgz",
+      "integrity": "sha512-Vmp0jIp2ln35UTXuryvjzkjGdRyf9b2lTXuSYUiPmzRcl3FDtYqAwOnTJkAngD9SWhnoJzDbTKwaOrZ+STtxNQ==",
       "dev": true,
       "requires": {
         "unique-slug": "^2.0.0"
       }
     },
     "unique-slug": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/unique-slug/-/unique-slug-2.0.0.tgz",
-      "integrity": "sha1-22Z258fMBimHj/GWCXx4hVrp9Ks=",
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/unique-slug/-/unique-slug-2.0.1.tgz",
+      "integrity": "sha512-n9cU6+gITaVu7VGj1Z8feKMmfAjEAQGhwD9fE3zvpRRa0wEIx8ODYkVGfSc94M2OX00tUFV8wH3zYbm1I8mxFg==",
       "dev": true,
       "requires": {
         "imurmurhash": "^0.1.4"
@@ -11043,12 +11048,6 @@
         }
       }
     },
-    "url-join": {
-      "version": "4.0.0",
-      "resolved": "https://registry.npmjs.org/url-join/-/url-join-4.0.0.tgz",
-      "integrity": "sha1-TTNA6AfTdzvamZH4MFrNzCpmXSo=",
-      "dev": true
-    },
     "url-parse": {
       "version": "1.4.3",
       "resolved": "https://registry.npmjs.org/url-parse/-/url-parse-1.4.3.tgz",
@@ -11694,17 +11693,14 @@
       }
     },
     "webpack-dev-middleware": {
-      "version": "3.2.0",
-      "resolved": "https://registry.npmjs.org/webpack-dev-middleware/-/webpack-dev-middleware-3.2.0.tgz",
-      "integrity": "sha512-YJLMF/96TpKXaEQwaLEo+Z4NDK8aV133ROF6xp9pe3gQoS7sxfpXh4Rv9eC+8vCvWfmDjRQaMSlRPbO+9G6jgA==",
+      "version": "3.4.0",
+      "resolved": "https://registry.npmjs.org/webpack-dev-middleware/-/webpack-dev-middleware-3.4.0.tgz",
+      "integrity": "sha512-Q9Iyc0X9dP9bAsYskAVJ/hmIZZQwf/3Sy4xCAZgL5cUkjZmUZLt4l5HpbST/Pdgjn3u6pE7u5OdGd1apgzRujA==",
       "dev": true,
       "requires": {
-        "loud-rejection": "^1.6.0",
         "memory-fs": "~0.4.1",
         "mime": "^2.3.1",
-        "path-is-absolute": "^1.0.0",
         "range-parser": "^1.0.3",
-        "url-join": "^4.0.0",
         "webpack-log": "^2.0.0"
       },
       "dependencies": {
@@ -11717,9 +11713,9 @@
       }
     },
     "webpack-dev-server": {
-      "version": "3.1.8",
-      "resolved": "https://registry.npmjs.org/webpack-dev-server/-/webpack-dev-server-3.1.8.tgz",
-      "integrity": "sha512-c+tcJtDqnPdxCAzEEZKdIPmg3i5i7cAHe+B+0xFNK0BlCc2HF/unYccbU7xTgfGc5xxhCztCQzFmsqim+KhI+A==",
+      "version": "3.1.9",
+      "resolved": "https://registry.npmjs.org/webpack-dev-server/-/webpack-dev-server-3.1.9.tgz",
+      "integrity": "sha512-fqPkuNalLuc/hRC2QMkVYJkgNmRvxZQo7ykA2e1XRg/tMJm3qY7ZaD6d89/Fqjxtj9bOrn5wZzLD2n84lJdvWg==",
       "dev": true,
       "requires": {
         "ansi-html": "0.0.7",
@@ -11747,7 +11743,7 @@
         "spdy": "^3.4.1",
         "strip-ansi": "^3.0.0",
         "supports-color": "^5.1.0",
-        "webpack-dev-middleware": "3.2.0",
+        "webpack-dev-middleware": "3.4.0",
         "webpack-log": "^2.0.0",
         "yargs": "12.0.2"
       },
@@ -11800,9 +11796,9 @@
           }
         },
         "debug": {
-          "version": "3.2.5",
-          "resolved": "https://registry.npmjs.org/debug/-/debug-3.2.5.tgz",
-          "integrity": "sha512-D61LaDQPQkxJ5AUM2mbSJRbPkNs/TmdmOeLAi1hgDkpDfIfetSrjmWhccwtuResSwMbACjx/xXQofvM9CE/aeg==",
+          "version": "3.2.6",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-3.2.6.tgz",
+          "integrity": "sha512-mel+jf7nrtEl5Pn1Qx46zARXKDpBbvzezse7p7LqINmdoIk8PYP5SySaxEmYv6TZ0JyEKA1hsCId6DIhgITtWQ==",
           "dev": true,
           "requires": {
             "ms": "^2.1.1"
diff --git a/package.json b/package.json
index 9a2fa084..70e06fe1 100644
--- a/package.json
+++ b/package.json
@@ -15,10 +15,10 @@
     }
   },
   "devDependencies": {
-    "@types/node": "^9.6.23",
+    "@types/node": "^9.6.35",
     "@types/pretty-bytes": "^5.1.0",
     "@types/webassembly-js-api": "0.0.1",
-    "@webcomponents/custom-elements": "^1.2.0",
+    "@webcomponents/custom-elements": "^1.2.1",
     "babel-loader": "^7.1.5",
     "babel-plugin-jsx-pragmatic": "^1.0.2",
     "babel-plugin-syntax-dynamic-import": "^6.18.0",
@@ -27,20 +27,20 @@
     "babel-plugin-transform-object-rest-spread": "^6.26.0",
     "babel-plugin-transform-react-constant-elements": "^6.23.0",
     "babel-plugin-transform-react-jsx": "^6.24.1",
-    "babel-plugin-transform-react-remove-prop-types": "^0.4.14",
+    "babel-plugin-transform-react-remove-prop-types": "^0.4.19",
     "babel-preset-env": "^1.7.0",
     "babel-register": "^6.26.0",
     "clean-webpack-plugin": "^0.1.19",
-    "copy-webpack-plugin": "^4.5.2",
+    "copy-webpack-plugin": "^4.5.3",
     "css-loader": "^0.28.11",
     "exports-loader": "^0.7.0",
     "file-loader": "^1.1.11",
     "html-webpack-plugin": "^3.2.0",
-    "husky": "^1.0.0-rc.13",
+    "husky": "^1.1.2",
     "if-env": "^1.0.4",
     "loader-utils": "^1.1.0",
     "mini-css-extract-plugin": "^0.3.0",
-    "node-sass": "^4.9.3",
+    "node-sass": "^4.9.4",
     "optimize-css-assets-webpack-plugin": "^4.0.3",
     "progress-bar-webpack-plugin": "^1.11.0",
     "raw-loader": "^0.5.1",
@@ -55,7 +55,7 @@
     "tslint-react": "^3.6.0",
     "typescript": "^2.9.2",
     "typings-for-css-modules-loader": "^1.7.0",
-    "webpack": "^4.19.1",
+    "webpack": "=4.19.1",
     "webpack-bundle-analyzer": "^2.13.1",
     "webpack-cli": "^2.1.5",
     "webpack-dev-server": "^3.1.5",
@@ -66,6 +66,6 @@
     "preact": "^8.3.1",
     "pretty-bytes": "^5.1.0",
     "worker-plugin": "^1.1.1",
-    "file-drop-element": "0.0.2"
+    "file-drop-element": "0.0.6"
   }
 }
diff --git a/src/components/App/index.tsx b/src/components/App/index.tsx
index 7bea30f5..724fbd22 100644
--- a/src/components/App/index.tsx
+++ b/src/components/App/index.tsx
@@ -2,7 +2,7 @@ import { h, Component } from 'preact';
 
 import { bind, linkRef, Fileish } from '../../lib/initial-util';
 import * as style from './style.scss';
-import * as FileDropElement from 'file-drop-element';
+import { FileDropEvent } from 'file-drop-element';
 import 'file-drop-element';
 import SnackBarElement, { SnackOptions } from '../../lib/SnackBar';
 import '../../lib/SnackBar';
@@ -54,7 +54,7 @@ export default class App extends Component<Props, State> {
   }
 
   @bind
-  private onFileDrop(event: FileDropElement.FileDropEvent) {
+  private onFileDrop(event: FileDropEvent) {
     const { file } = event;
     if (!file) return;
     this.setState({ file });