diff --git a/package-lock.json b/package-lock.json
index 7d8f1dd..2c6c834 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2152,9 +2152,9 @@
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     },
     "sapper": {
-      "version": "0.27.10",
-      "resolved": "https://registry.npmjs.org/sapper/-/sapper-0.27.10.tgz",
-      "integrity": "sha512-hbl+uE7RClCdVst2qyaPuKjZOQx/1iSMiiBPFHU4IiAucuAkZM7hIwTfYQXLOltuAYoFfAEQVV3L9PJ81f7Oig==",
+      "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",
@@ -2415,14 +2415,10 @@
       }
     },
     "uglify-js": {
-      "version": "3.8.0",
-      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.8.0.tgz",
-      "integrity": "sha512-ugNSTT8ierCsDHso2jkBHXYrU8Y5/fY2ZUprfrJUiD7YpuFvV4jODLFmb3h4btQjqr5Nh4TX4XtgDfCU1WdioQ==",
-      "dev": true,
-      "requires": {
-        "commander": "~2.20.3",
-        "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
     },
     "unicode-canonical-property-names-ecmascript": {
       "version": "1.0.4",
diff --git a/package.json b/package.json
index 3cdc70d..2f169c9 100644
--- a/package.json
+++ b/package.json
@@ -18,7 +18,7 @@
   },
   "devDependencies": {
     "npm-run-all": "^4.1.5",
-    "sapper": "^0.27.10",
+    "sapper": "^0.27.11",
     "svelte": "^3.20.1",
     "@babel/core": "^7.8.7",
     "@babel/plugin-syntax-dynamic-import": "^7.8.3",