diff --git a/package-lock.json b/package-lock.json
index fe9ae5131f7aa0dec8396c1e51568b125de9fc70..d1d3e14388db9c8e52ddd3fdcdcb68e49d3ccc96 100644
Binary files a/package-lock.json and b/package-lock.json differ
diff --git a/package.json b/package.json
index 01ea94f77f792fd5a57857fe69a51ca26ee40189..72dd74f55720e4c2e513614661ceaa78b274da4e 100644
--- a/package.json
+++ b/package.json
@@ -70,10 +70,10 @@
     "@types/benchmark": "^1.0.31",
     "@types/compression": "0.0.36",
     "@types/express": "^4.16.0",
-    "@types/jest": "^23.1.5",
-    "@types/node": "~10.5.2",
-    "@types/node-fetch": "^2.1.1",
-    "@types/react": "^16.4.6",
+    "@types/jest": "^23.3.1",
+    "@types/node": "^10.5.4",
+    "@types/node-fetch": "^2.1.2",
+    "@types/react": "^16.4.7",
     "@types/react-dom": "^16.0.6",
     "benchmark": "^2.1.4",
     "copyfiles": "^2.0.0",
@@ -83,7 +83,7 @@
     "file-loader": "^1.1.11",
     "glslify-import": "^3.1.0",
     "glslify-loader": "^1.0.2",
-    "jest": "^23.4.0",
+    "jest": "^23.4.2",
     "jest-raw-loader": "^1.0.1",
     "mini-css-extract-plugin": "^0.4.1",
     "node-sass": "^4.9.2",
@@ -91,22 +91,22 @@
     "resolve-url-loader": "^2.3.0",
     "sass-loader": "^7.0.3",
     "style-loader": "^0.21.0",
-    "ts-jest": "^23.0.0",
-    "tslint": "^5.10.0",
-    "typescript": "^2.9.2",
-    "uglify-js": "^3.4.4",
+    "ts-jest": "^23.0.1",
+    "tslint": "^5.11.0",
+    "typescript": "^3.0.0",
+    "uglify-js": "^3.4.6",
     "util.promisify": "^1.0.0",
-    "webpack": "^4.16.0",
-    "webpack-cli": "^3.0.8"
+    "webpack": "^4.16.3",
+    "webpack-cli": "^3.1.0"
   },
   "dependencies": {
     "argparse": "^1.0.10",
-    "compression": "^1.7.2",
+    "compression": "^1.7.3",
     "express": "^4.16.3",
     "immutable": "^4.0.0-rc.9",
-    "node-fetch": "^2.1.2",
+    "node-fetch": "^2.2.0",
     "react": "^16.4.1",
     "react-dom": "^16.4.1",
-    "rxjs": "^6.2.1"
+    "rxjs": "^6.2.2"
   }
 }
diff --git a/src/mol-util/download.ts b/src/mol-util/download.ts
index 2e820378ce72dafdb060d158a04fe0a0bdc8eec5..4efa347e544414a8cca1f273b8d56eceab4c3e18 100644
--- a/src/mol-util/download.ts
+++ b/src/mol-util/download.ts
@@ -33,7 +33,7 @@ export function download (data: Blob|string, downloadName = 'download') {
         if (data instanceof Blob) {
             // no downloading of blob urls in Safari
             const reader = new FileReader()
-            reader.onloadend = () => open(reader.result)
+            reader.onloadend = () => open(reader.result as string)
             reader.readAsDataURL(data)
         } else {
             open(data)
diff --git a/src/mol-util/read.ts b/src/mol-util/read.ts
index b88abd9ebfb5587d9800b7eea9af00d0ce832401..29cc2acf06a6e0a36295a114be29d28b56495b59 100644
--- a/src/mol-util/read.ts
+++ b/src/mol-util/read.ts
@@ -12,7 +12,7 @@ export const readFileAs = (file: File, isBinary = false) => {
             reject(new DOMException('Error parsing file.'))
         }
         fileReader.onload = () => {
-            resolve(isBinary ? new Uint8Array(fileReader.result) : fileReader.result)
+            resolve(isBinary ? new Uint8Array(fileReader.result as ArrayBuffer) : fileReader.result as string)
         }
         if (isBinary) {
             fileReader.readAsArrayBuffer(file)