diff --git a/package-lock.json b/package-lock.json
index b3f9a30..bae4bc3 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -874,9 +874,9 @@
       "dev": true
     },
     "@polka/url": {
-      "version": "1.0.0-next.3",
-      "resolved": "https://registry.npmjs.org/@polka/url/-/url-1.0.0-next.3.tgz",
-      "integrity": "sha512-Uom7l6OeP6vcf85lMImelYu5WKVWjXyhkpi9WsRdRzlJFJFPVhjBtBCktgDUj7dk1N5FURUdegSZ5XOjxf8JZg=="
+      "version": "1.0.0-next.11",
+      "resolved": "https://registry.npmjs.org/@polka/url/-/url-1.0.0-next.11.tgz",
+      "integrity": "sha512-3NsZsJIA/22P3QUyrEDNA2D133H4j224twJrdipXN38dpnIOzAbUDtOwkcJ5pXmn75w7LSQDjA4tO9dm1XlqlA=="
     },
     "@types/estree": {
       "version": "0.0.39",
@@ -1331,9 +1331,9 @@
       }
     },
     "clean-css": {
-      "version": "4.2.1",
-      "resolved": "https://registry.npmjs.org/clean-css/-/clean-css-4.2.1.tgz",
-      "integrity": "sha512-4ZxI6dy4lrY6FHzfiy1aEOXgu4LIsW2MhwG0VBKdcoGoH/XLFgaHSdLTGr4O8Be6A8r3MOphEiI8Gc1n0ecf3g==",
+      "version": "4.2.3",
+      "resolved": "https://registry.npmjs.org/clean-css/-/clean-css-4.2.3.tgz",
+      "integrity": "sha512-VcMWDN54ZN/DS+g58HYL5/n4Zrqe8vHJpGA8KdgUXFU4fuP/aHNw8eld9SyEIyabIMJX/0RaY/fplOo5hYLSFA==",
       "dev": true,
       "requires": {
         "source-map": "~0.6.0"
@@ -3532,11 +3532,11 @@
       "dev": true
     },
     "polka": {
-      "version": "1.0.0-next.6",
-      "resolved": "https://registry.npmjs.org/polka/-/polka-1.0.0-next.6.tgz",
-      "integrity": "sha512-e3vZm2cMmPPrgn+0J5DO0rrSTfsCHGyh+YS6jjrqYP8BHJkPq8nCVSDxHkaiEN4f0c2dtR6FB+snDmLE/sRz7A==",
+      "version": "1.0.0-next.11",
+      "resolved": "https://registry.npmjs.org/polka/-/polka-1.0.0-next.11.tgz",
+      "integrity": "sha512-M/HBkS6ILksrDq7uvktCTev81OzuLwNtpxMyYdUhxLKQlMWdsu789XMotQU+p8JY8CM8vx8ML0HudyWjRus/lg==",
       "requires": {
-        "@polka/url": "^1.0.0-next.3",
+        "@polka/url": "^1.0.0-next.11",
         "trouter": "^3.1.0"
       }
     },
@@ -4184,9 +4184,9 @@
       }
     },
     "sapper": {
-      "version": "0.27.9",
-      "resolved": "https://registry.npmjs.org/sapper/-/sapper-0.27.9.tgz",
-      "integrity": "sha512-v3b3UgGeVhFUOpA5IZgdThdr4nZ6aMH6IxDsg1Yu2UWHWEV9vW/Zehch9M/xqJNp/x9n9X+S9syJg1s5QOOmFA==",
+      "version": "0.27.11",
+      "resolved": "https://registry.npmjs.org/sapper/-/sapper-0.27.11.tgz",
+      "integrity": "sha512-5EaPZhlc8OnyN3UCI6dRSM1Gz5sxyzLZG/1z5nMvZhg9Ng+rSvEvJx/rW/tSHcnQPa8or7+YcbfvQHKS5oPHiw==",
       "dev": true,
       "requires": {
         "html-minifier": "^4.0.0",
@@ -4705,22 +4705,10 @@
       }
     },
     "uglify-js": {
-      "version": "3.6.2",
-      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.6.2.tgz",
-      "integrity": "sha512-+gh/xFte41GPrgSMJ/oJVq15zYmqr74pY9VoM69UzMzq9NFk4YDylclb1/bhEzZSaUQjbW5RvniHeq1cdtRYjw==",
-      "dev": true,
-      "requires": {
-        "commander": "2.20.0",
-        "source-map": "~0.6.1"
-      },
-      "dependencies": {
-        "commander": {
-          "version": "2.20.0",
-          "resolved": "https://registry.npmjs.org/commander/-/commander-2.20.0.tgz",
-          "integrity": "sha512-7j2y+40w61zy6YC2iRNpUe/NwhNyoXrYpHMrSunaMG64nRnaf96zO/KMQR4OyN/UnE5KLyEBnKHd4aG3rskjpQ==",
-          "dev": true
-        }
-      }
+      "version": "3.10.3",
+      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.10.3.tgz",
+      "integrity": "sha512-Lh00i69Uf6G74mvYpHCI9KVVXLcHW/xu79YTvH7Mkc9zyKUeSPz0owW0dguj0Scavns3ZOh3wY63J0Zb97Za2g==",
+      "dev": true
     },
     "unicode-canonical-property-names-ecmascript": {
       "version": "1.0.4",
diff --git a/package.json b/package.json
index 797604d..474b372 100644
--- a/package.json
+++ b/package.json
@@ -38,7 +38,7 @@
     "rollup-plugin-replace": "^2.0.0",
     "rollup-plugin-svelte": "^5.0.1",
     "rollup-plugin-terser": "^4.0.4",
-    "sapper": "^0.27.0",
+    "sapper": "^0.27.11",
     "svelte": "^3.0.0",
     "tailwindcss": "^1.1.0"
   }
diff --git a/yarn.lock b/yarn.lock
index 2365803..ea11ccf 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3039,10 +3039,10 @@ safe-regex@^1.1.0:
   resolved "https://registry.yarnpkg.com/safer-buffer/-/safer-buffer-2.1.2.tgz#44fa161b0187b9549dd84bb91802f9bd8385cd6a"
   integrity sha512-YZo3K82SD7Riyi0E1EQPojLz7kpepnSQI9IyPbHHg1XXXevb5dJI7tpyN2ADxGcQbHG7vcyRHk0cbwqcQriUtg==
 
-sapper@^0.27.0:
-  version "0.27.8"
-  resolved "https://registry.yarnpkg.com/sapper/-/sapper-0.27.8.tgz#dd41cd359373b816fbb519cffd1b941e4f4cd459"
-  integrity sha512-78K+56yu9nGOEU0B0XjBvNchRuPEv4aHbAKK4D874S4aoapMAkHCT0bHtPK12S3P7JPxvvT8GzHaq/8NetMmbg==
+sapper@^0.27.11:
+  version "0.27.11"
+  resolved "https://registry.yarnpkg.com/sapper/-/sapper-0.27.11.tgz#46877abe8a386bee62b9decfe9932fe37f5464f7"
+  integrity sha512-5EaPZhlc8OnyN3UCI6dRSM1Gz5sxyzLZG/1z5nMvZhg9Ng+rSvEvJx/rW/tSHcnQPa8or7+YcbfvQHKS5oPHiw==
   dependencies:
     html-minifier "^4.0.0"
     http-link-header "^1.0.2"