diff --git a/package-lock.json b/package-lock.json
index ef6693c..a4451c0 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "sapper",
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+  "version": "0.27.1",
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@@ -43,15 +43,15 @@
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+      "resolved": "https://registry.npmjs.org/@types/mocha/-/mocha-5.2.7.tgz",
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@@ -3105,6 +3114,15 @@
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-      "version": "3.17.0",
-      "resolved": "https://registry.npmjs.org/terser/-/terser-3.17.0.tgz",
-      "integrity": "sha512-/FQzzPJmCpjAH9Xvk2paiWrFq+5M6aVOf+2KRbwhByISDX/EujxsK+BAvrhb6H+2rtrLCHK9N01wO014vrIwVQ==",
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/terser/-/terser-4.0.0.tgz",
+      "integrity": "sha512-dOapGTU0hETFl1tCo4t56FN+2jffoKyER9qBGoUFyZ6y7WLoKT0bF+lAYi6B6YsILcGF3q1C2FBh8QcKSCgkgA==",
       "dev": true,
       "requires": {
         "commander": "^2.19.0",
@@ -5338,19 +5401,21 @@
       }
     },
     "terser-webpack-plugin": {
-      "version": "1.2.3",
-      "resolved": "https://registry.npmjs.org/terser-webpack-plugin/-/terser-webpack-plugin-1.2.3.tgz",
-      "integrity": "sha512-GOK7q85oAb/5kE12fMuLdn2btOS9OBZn4VsecpHDywoUC/jLhSAKOiYo0ezx7ss2EXPMzyEWFoE0s1WLE+4+oA==",
+      "version": "1.3.0",
+      "resolved": "https://registry.npmjs.org/terser-webpack-plugin/-/terser-webpack-plugin-1.3.0.tgz",
+      "integrity": "sha512-W2YWmxPjjkUcOWa4pBEv4OP4er1aeQJlSo2UhtCFQCuRXEHjOFscO8VyWHj9JLlA0RzQb8Y2/Ta78XZvT54uGg==",
       "dev": true,
       "requires": {
-        "cacache": "^11.0.2",
+        "cacache": "^11.3.2",
         "find-cache-dir": "^2.0.0",
+        "is-wsl": "^1.1.0",
+        "loader-utils": "^1.2.3",
         "schema-utils": "^1.0.0",
-        "serialize-javascript": "^1.4.0",
+        "serialize-javascript": "^1.7.0",
         "source-map": "^0.6.1",
-        "terser": "^3.16.1",
-        "webpack-sources": "^1.1.0",
-        "worker-farm": "^1.5.2"
+        "terser": "^4.0.0",
+        "webpack-sources": "^1.3.0",
+        "worker-farm": "^1.7.0"
       }
     },
     "text-table": {
@@ -5699,9 +5764,9 @@
       }
     },
     "webpack": {
-      "version": "4.31.0",
-      "resolved": "https://registry.npmjs.org/webpack/-/webpack-4.31.0.tgz",
-      "integrity": "sha512-n6RVO3X0LbbipoE62akME9K/JI7qYrwwufs20VvgNNpqUoH4860KkaxJTbGq5bgkVZF9FqyyTG/0WPLH3PVNJA==",
+      "version": "4.33.0",
+      "resolved": "https://registry.npmjs.org/webpack/-/webpack-4.33.0.tgz",
+      "integrity": "sha512-ggWMb0B2QUuYso6FPZKUohOgfm+Z0sVFs8WwWuSH1IAvkWs428VDNmOlAxvHGTB9Dm/qOB/qtE5cRx5y01clxw==",
       "dev": true,
       "requires": {
         "@webassemblyjs/ast": "1.8.5",
@@ -6085,9 +6150,9 @@
       }
     },
     "yootils": {
-      "version": "0.0.15",
-      "resolved": "https://registry.npmjs.org/yootils/-/yootils-0.0.15.tgz",
-      "integrity": "sha512-GvGLuJ7XHJPGEUQ52vh8fh+vPjfikuGcu7yBswfrsNsHqnAoytOVuSb69eM0j8wQIjMz0U3kY3YsfwMhJgfG9w==",
+      "version": "0.0.16",
+      "resolved": "https://registry.npmjs.org/yootils/-/yootils-0.0.16.tgz",
+      "integrity": "sha512-aIVecm5ucOzwhtKbl0zkfg0ZSOUR9c2da0k8cIc9umjjzkvVCWUUX/UHZ1CLPsv4wmJLqt0aWeLB7p9n9JDwYQ==",
       "dev": true
     }
   }
diff --git a/package.json b/package.json
index a873d98..9472526 100644
--- a/package.json
+++ b/package.json
@@ -25,43 +25,43 @@
     "string-hash": "^1.1.3"
   },
   "devDependencies": {
-    "@types/mocha": "^5.2.6",
-    "@types/node": "^12.0.0",
+    "@types/mocha": "^5.2.7",
+    "@types/node": "^12.0.7",
     "@types/puppeteer": "^1.12.4",
     "agadoo": "^1.0.1",
     "cheap-watch": "^1.0.2",
-    "cookie": "^0.3.1",
+    "cookie": "^0.4.0",
     "devalue": "^1.1.0",
     "eslint": "^5.16.0",
-    "eslint-plugin-import": "^2.17.2",
+    "eslint-plugin-import": "^2.17.3",
     "kleur": "^3.0.3",
     "mocha": "^6.1.4",
-    "node-fetch": "^2.5.0",
+    "node-fetch": "^2.6.0",
     "npm-run-all": "^4.1.5",
     "polka": "^0.5.2",
     "port-authority": "^1.0.5",
     "pretty-bytes": "^5.2.0",
-    "puppeteer": "^1.15.0",
+    "puppeteer": "^1.17.0",
     "require-relative": "^0.8.7",
-    "rollup": "^1.11.3",
-    "rollup-plugin-commonjs": "^9.3.4",
+    "rollup": "^1.14.5",
+    "rollup-plugin-commonjs": "^10.0.0",
     "rollup-plugin-json": "^4.0.0",
-    "rollup-plugin-node-resolve": "^4.2.3",
+    "rollup-plugin-node-resolve": "^5.0.1",
     "rollup-plugin-replace": "^2.2.0",
     "rollup-plugin-string": "^3.0.0",
     "rollup-plugin-sucrase": "^2.1.0",
     "rollup-plugin-svelte": "^5.0.3",
-    "sade": "^1.4.2",
+    "sade": "^1.5.0",
     "sirv": "^0.4.2",
     "sucrase": "^3.10.1",
-    "svelte": "^3.2.2",
-    "svelte-loader": "^2.13.3",
-    "webpack": "^4.31.0",
+    "svelte": "^3.5.0",
+    "svelte-loader": "^2.13.4",
+    "webpack": "^4.33.0",
     "webpack-format-messages": "^2.0.5",
-    "yootils": "0.0.15"
+    "yootils": "0.0.16"
   },
   "peerDependencies": {
-    "svelte": "^3.2.2"
+    "svelte": "^3.5.0"
   },
   "scripts": {
     "test": "mocha --opts mocha.opts",