diff --git a/package-lock.json b/package-lock.json
index e9cad4e..20ddff1 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2061,12 +2061,14 @@
             "balanced-match": {
               "version": "1.0.0",
               "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.0.tgz",
-              "integrity": "sha1-ibTRmasr7kneFk6gK4nORi1xt2c="
+              "integrity": "sha1-ibTRmasr7kneFk6gK4nORi1xt2c=",
+              "optional": true
             },
             "brace-expansion": {
               "version": "1.1.11",
               "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.11.tgz",
               "integrity": "sha512-iCuPHDFgrHX7H2vEI/5xpz07zSHB00TpugqhmYtVmMO6518mCuRMoOYFldEBl0g187ufozdaHgWKcYFb61qGiA==",
+              "optional": true,
               "requires": {
                 "balanced-match": "^1.0.0",
                 "concat-map": "0.0.1"
@@ -2081,17 +2083,20 @@
             "code-point-at": {
               "version": "1.1.0",
               "resolved": "https://registry.npmjs.org/code-point-at/-/code-point-at-1.1.0.tgz",
-              "integrity": "sha1-DQcLTQQ6W+ozovGkDi7bPZpMz3c="
+              "integrity": "sha1-DQcLTQQ6W+ozovGkDi7bPZpMz3c=",
+              "optional": true
             },
             "concat-map": {
               "version": "0.0.1",
               "resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz",
-              "integrity": "sha1-2Klr13/Wjfd5OnMDajug1UBdR3s="
+              "integrity": "sha1-2Klr13/Wjfd5OnMDajug1UBdR3s=",
+              "optional": true
             },
             "console-control-strings": {
               "version": "1.1.0",
               "resolved": "https://registry.npmjs.org/console-control-strings/-/console-control-strings-1.1.0.tgz",
-              "integrity": "sha1-PXz0Rk22RG6mRL9LOVB/mFEAjo4="
+              "integrity": "sha1-PXz0Rk22RG6mRL9LOVB/mFEAjo4=",
+              "optional": true
             },
             "core-util-is": {
               "version": "1.0.2",
@@ -2208,7 +2213,8 @@
             "inherits": {
               "version": "2.0.3",
               "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.3.tgz",
-              "integrity": "sha1-Yzwsg+PaQqUC9SRmAiSA9CCCYd4="
+              "integrity": "sha1-Yzwsg+PaQqUC9SRmAiSA9CCCYd4=",
+              "optional": true
             },
             "ini": {
               "version": "1.3.5",
@@ -2220,6 +2226,7 @@
               "version": "1.0.0",
               "resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-1.0.0.tgz",
               "integrity": "sha1-754xOG8DGn8NZDr4L95QxFfvAMs=",
+              "optional": true,
               "requires": {
                 "number-is-nan": "^1.0.0"
               }
@@ -2234,6 +2241,7 @@
               "version": "3.0.4",
               "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.0.4.tgz",
               "integrity": "sha512-yJHVQEhyqPLUTgt9B83PXu6W3rx4MvvHvSUvToogpwoGDOUQ+yDrR0HRot+yOCdCO7u4hX3pWft6kWBBcqh0UA==",
+              "optional": true,
               "requires": {
                 "brace-expansion": "^1.1.7"
               }
@@ -2241,12 +2249,14 @@
             "minimist": {
               "version": "0.0.8",
               "resolved": "https://registry.npmjs.org/minimist/-/minimist-0.0.8.tgz",
-              "integrity": "sha1-hX/Kv8M5fSYluCKCYuhqp6ARsF0="
+              "integrity": "sha1-hX/Kv8M5fSYluCKCYuhqp6ARsF0=",
+              "optional": true
             },
             "minipass": {
               "version": "2.2.4",
               "resolved": "https://registry.npmjs.org/minipass/-/minipass-2.2.4.tgz",
               "integrity": "sha512-hzXIWWet/BzWhYs2b+u7dRHlruXhwdgvlTMDKC6Cb1U7ps6Ac6yQlR39xsbjWJE377YTCtKwIXIpJ5oP+j5y8g==",
+              "optional": true,
               "requires": {
                 "safe-buffer": "^5.1.1",
                 "yallist": "^3.0.0"
@@ -2265,6 +2275,7 @@
               "version": "0.5.1",
               "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.1.tgz",
               "integrity": "sha1-MAV0OOrGz3+MR2fzhkjWaX11yQM=",
+              "optional": true,
               "requires": {
                 "minimist": "0.0.8"
               }
@@ -2345,7 +2356,8 @@
             "number-is-nan": {
               "version": "1.0.1",
               "resolved": "https://registry.npmjs.org/number-is-nan/-/number-is-nan-1.0.1.tgz",
-              "integrity": "sha1-CXtgK1NCKlIsGvuHkDGDNpQaAR0="
+              "integrity": "sha1-CXtgK1NCKlIsGvuHkDGDNpQaAR0=",
+              "optional": true
             },
             "object-assign": {
               "version": "4.1.1",
@@ -2357,6 +2369,7 @@
               "version": "1.4.0",
               "resolved": "https://registry.npmjs.org/once/-/once-1.4.0.tgz",
               "integrity": "sha1-WDsap3WWHUsROsF9nFC6753Xa9E=",
+              "optional": true,
               "requires": {
                 "wrappy": "1"
               }
@@ -2478,6 +2491,7 @@
               "version": "1.0.2",
               "resolved": "https://registry.npmjs.org/string-width/-/string-width-1.0.2.tgz",
               "integrity": "sha1-EYvfW4zcUaKn5w0hHgfisLmxB9M=",
+              "optional": true,
               "requires": {
                 "code-point-at": "^1.0.0",
                 "is-fullwidth-code-point": "^1.0.0",
@@ -8668,9 +8682,9 @@
       "integrity": "sha1-U10EXOa2Nj+kARcIRimZXp3zJMc="
     },
     "svelte": {
-      "version": "2.15.3",
-      "resolved": "https://registry.npmjs.org/svelte/-/svelte-2.15.3.tgz",
-      "integrity": "sha512-0bKpXppM/YlPZ8F0mREaUYpE8Te11RvG62ttFr+n1U3G2qdr3cZzuXCnQMcVZukwAUJAjRM55OSH7FLmXnPGRA=="
+      "version": "2.16.0",
+      "resolved": "https://registry.npmjs.org/svelte/-/svelte-2.16.0.tgz",
+      "integrity": "sha512-1x1zCZpNnuwQdH+9tTeM0QYv33TVEFIxrrd88Mv80EcaomIlA9IvFLIThc8OFsCMHwrjllbIRNmsVfwlOxI7MA=="
     },
     "svelte-dev-helper": {
       "version": "1.1.9",
diff --git a/package.json b/package.json
index fbd3b1b..90cf7bc 100644
--- a/package.json
+++ b/package.json
@@ -83,7 +83,7 @@
     "sapper": "github:nolanlawson/sapper#nolan/sw-index-html-built",
     "serve-static": "^1.13.2",
     "stringz": "^1.0.0",
-    "svelte": "^2.15.3",
+    "svelte": "^2.16.0",
     "svelte-extras": "^2.0.2",
     "svelte-loader": "^2.11.0",
     "svelte-transitions": "^1.2.0",