diff --git a/package-lock.json b/package-lock.json
index ece6837..6f0db87 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -785,9 +785,9 @@
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     },
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-      "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"
@@ -3534,15 +3534,15 @@
       }
     },
     "sapper": {
-      "version": "0.27.1",
-      "resolved": "https://registry.npmjs.org/sapper/-/sapper-0.27.1.tgz",
-      "integrity": "sha512-RH0K1uQ3zJ1IXvowxr2SuboGXV69q22KaPMhhoM5VNDv9fsUlVHtluZE8WTcGxckiO2L1xFfgM7v/aINkSZpcw==",
+      "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",
         "http-link-header": "^1.0.2",
-        "shimport": "^1.0.0",
-        "sourcemap-codec": "^1.4.4",
+        "shimport": "^1.0.1",
+        "sourcemap-codec": "^1.4.6",
         "string-hash": "^1.1.3"
       }
     },
@@ -3639,9 +3639,9 @@
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     "shimport": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/shimport/-/shimport-1.0.0.tgz",
-      "integrity": "sha512-XKd+39voZT1rFR1ct+pr8sFSYAW6IvM3LeF87FrgcGHc/uSZ4GfOZVA42LE5LXFOpTWgmDC5sS8DNDtiV4Vd4Q==",
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/shimport/-/shimport-1.0.1.tgz",
+      "integrity": "sha512-Imf4gH+8WQmT1GvxS/x79qpmfnE6m50hyN1ucatX+7oMCgmaF8obZWCPIzSUe6+P+YmXM46lkP2pxiV2/lt9Og==",
       "dev": true
     },
     "showdown": {
@@ -3821,9 +3821,9 @@
       "dev": true
     },
     "sourcemap-codec": {
-      "version": "1.4.4",
-      "resolved": "https://registry.npmjs.org/sourcemap-codec/-/sourcemap-codec-1.4.4.tgz",
-      "integrity": "sha512-CYAPYdBu34781kLHkaW3m6b/uUSyMOC2R61gcYMWooeuaGtjof86ZA/8T+qVPPt7np1085CR9hmMGrySwEc8Xg==",
+      "version": "1.4.8",
+      "resolved": "https://registry.npmjs.org/sourcemap-codec/-/sourcemap-codec-1.4.8.tgz",
+      "integrity": "sha512-9NykojV5Uih4lgo5So5dtw+f0JgJX30KCNI8gwhz2J9A15wD0Ml6tjHKwf6fTSa6fAdVBdZeNOs9eJ71qCk8vA==",
       "dev": true
     },
     "spdx-correct": {
@@ -4156,14 +4156,10 @@
       "dev": true
     },
     "uglify-js": {
-      "version": "3.6.0",
-      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.6.0.tgz",
-      "integrity": "sha512-W+jrUHJr3DXKhrsS7NUVxn3zqMOFn0hL/Ei6v0anCIMoKC93TjcflTagwIHLW7SfMFfiQuktQyFVCFHGUE0+yg==",
-      "dev": true,
-      "requires": {
-        "commander": "~2.20.0",
-        "source-map": "~0.6.1"
-      }
+      "version": "3.10.3",
+      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.10.3.tgz",
+      "integrity": "sha512-Lh00i69Uf6G74mvYpHCI9KVVXLcHW/xu79YTvH7Mkc9zyKUeSPz0owW0dguj0Scavns3ZOh3wY63J0Zb97Za2g==",
+      "dev": true
     },
     "union-value": {
       "version": "1.0.0",
diff --git a/package.json b/package.json
index 1857ab5..c455337 100644
--- a/package.json
+++ b/package.json
@@ -26,7 +26,7 @@
     "npm-run-all": "^4.1.5",
     "prettier": "^1.18.2",
     "prettier-plugin-svelte": "^0.6.0",
-    "sapper": "^0.27.0",
+    "sapper": "^0.27.11",
     "svelte": "^3.0.0",
     "svelte-loader": "^2.9.0",
     "webpack": "^4.7.0"