diff --git a/package-lock.json b/package-lock.json
index 56b0d39..1fdc792 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2994,6 +2994,12 @@
       "integrity": "sha1-tUc7M9yXxCTl2Y3IfVXU2KKci/I=",
       "dev": true
     },
+    "charset": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/charset/-/charset-1.0.1.tgz",
+      "integrity": "sha512-6dVyOOYjpfFcL1Y4qChrAoQLRHvj2ziyhcm0QJlhOcAhykL/k1kTUPbeo+87MNRTRdk2OIIsIXbuF3x2wi5EXg==",
+      "dev": true
+    },
     "chokidar": {
       "version": "1.7.0",
       "resolved": "https://registry.npmjs.org/chokidar/-/chokidar-1.7.0.tgz",
@@ -3624,21 +3630,29 @@
       }
     },
     "ecstatic": {
-      "version": "1.4.1",
-      "resolved": "https://registry.npmjs.org/ecstatic/-/ecstatic-1.4.1.tgz",
-      "integrity": "sha1-Mst7b6LikNWGaGdNEV6PDD1WfWo=",
+      "version": "4.1.4",
+      "resolved": "https://registry.npmjs.org/ecstatic/-/ecstatic-4.1.4.tgz",
+      "integrity": "sha512-8E4ZLK4uRuB9pwywGpy/B9vcz4gCp6IY7u4cMbeCINr/fjb1v+0wf0Ae2XlfSnG8xZYnE4uaJBjFkYI0bqcIdw==",
       "dev": true,
       "requires": {
-        "he": "^0.5.0",
-        "mime": "^1.2.11",
+        "charset": "^1.0.1",
+        "he": "^1.1.1",
+        "mime": "^2.4.1",
         "minimist": "^1.1.0",
-        "url-join": "^1.0.0"
+        "on-finished": "^2.3.0",
+        "url-join": "^4.0.0"
       },
       "dependencies": {
+        "mime": {
+          "version": "2.4.6",
+          "resolved": "https://registry.npmjs.org/mime/-/mime-2.4.6.tgz",
+          "integrity": "sha512-RZKhC3EmpBchfTGBVb8fb+RL2cWyw/32lshnsETttkBAyAUXSGHxbEJWWRXc751DrIxG1q04b8QwMbAwkRPpUA==",
+          "dev": true
+        },
         "minimist": {
-          "version": "1.2.0",
-          "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.0.tgz",
-          "integrity": "sha1-o1AIsg9BOD7sH7kU9M1d95omQoQ=",
+          "version": "1.2.5",
+          "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.5.tgz",
+          "integrity": "sha512-FM9nNUYrRBAELZQT3xeZQ7fmMOBg6nWNmJKTcgsJeaLstP/UODVpGsr5OhXhhXg6f+qtJ8uiZ+PUxkDWcgIXLw==",
           "dev": true
         }
       }
@@ -5600,9 +5614,9 @@
       }
     },
     "he": {
-      "version": "0.5.0",
-      "resolved": "https://registry.npmjs.org/he/-/he-0.5.0.tgz",
-      "integrity": "sha1-LAX/rvkLaOhg8/0rVO9YCYknfuI=",
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/he/-/he-1.2.0.tgz",
+      "integrity": "sha512-F/1DnUGPopORZi0ni+CvrCgHQ5FyEAHRLSApuYWMmrbSwoN2Mn/7k+Gl38gJnR7yyDZk6WLXwiGod1JOWNDKGw==",
       "dev": true
     },
     "hmac-drbg": {
@@ -8612,9 +8626,9 @@
       }
     },
     "url-join": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/url-join/-/url-join-1.1.0.tgz",
-      "integrity": "sha1-dBxsL0WWxIMNZxhGCSDQySIC3Hg=",
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/url-join/-/url-join-4.0.1.tgz",
+      "integrity": "sha512-jk1+QP6ZJqyOiuEI9AEWQfju/nB2Pw466kbA0LEZljHwKeMgd9WrAEgEGxjPDD2+TNbbb37rTyhEfrCXfuKXnA==",
       "dev": true
     },
     "url2": {
diff --git a/package.json b/package.json
index 45341d9..e88ffba 100644
--- a/package.json
+++ b/package.json
@@ -56,7 +56,7 @@
     "babelify": "^7.2.0",
     "browserify": "^13.0.0",
     "browserify-hmr": "^0.3.1",
-    "ecstatic": "^1.4.0",
+    "ecstatic": "^4.1.4",
     "gh-pages": "^0.11.0",
     "react": "^0.14.7 || ^15.0.0-0",
     "react-dom": "^0.14.7 || ^15.0.0-0",