diff --git a/package-lock.json b/package-lock.json
index dac81a50..dc8c34b4 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -5797,6 +5797,7 @@
       "resolved": "https://registry.npmjs.org/fsevents/-/fsevents-1.2.4.tgz",
       "integrity": "sha512-z8H8/diyk76B7q5wg+Ud0+CqzcAF3mBBI/bA5ne5zrRUUIvNkJY//D3BqyH571KuAC4Nr7Rw7CjWX4r0y9DvNg==",
       "dev": true,
+      "optional": true,
       "requires": {
         "nan": "2.11.1",
         "node-pre-gyp": "0.10.0"
@@ -5805,7 +5806,8 @@
         "abbrev": {
           "version": "1.1.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "ansi-regex": {
           "version": "2.1.1",
@@ -5815,12 +5817,14 @@
         "aproba": {
           "version": "1.2.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "are-we-there-yet": {
           "version": "1.1.4",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "delegates": "1.0.0",
             "readable-stream": "2.3.6"
@@ -5843,7 +5847,8 @@
         "chownr": {
           "version": "1.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "code-point-at": {
           "version": "1.1.0",
@@ -5863,12 +5868,14 @@
         "core-util-is": {
           "version": "1.0.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "debug": {
           "version": "2.6.9",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "ms": "2.0.0"
           }
@@ -5876,22 +5883,26 @@
         "deep-extend": {
           "version": "0.5.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "delegates": {
           "version": "1.0.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "detect-libc": {
           "version": "1.0.3",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "fs-minipass": {
           "version": "1.2.5",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "minipass": "2.2.4"
           }
@@ -5899,12 +5910,14 @@
         "fs.realpath": {
           "version": "1.0.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "gauge": {
           "version": "2.7.4",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "aproba": "1.2.0",
             "console-control-strings": "1.1.0",
@@ -5920,6 +5933,7 @@
           "version": "7.1.2",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "fs.realpath": "1.0.0",
             "inflight": "1.0.6",
@@ -5932,12 +5946,14 @@
         "has-unicode": {
           "version": "2.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "iconv-lite": {
           "version": "0.4.21",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "safer-buffer": "2.1.2"
           }
@@ -5946,6 +5962,7 @@
           "version": "3.0.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "minimatch": "3.0.4"
           }
@@ -5954,6 +5971,7 @@
           "version": "1.0.6",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "once": "1.4.0",
             "wrappy": "1.0.2"
@@ -5967,7 +5985,8 @@
         "ini": {
           "version": "1.3.5",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "is-fullwidth-code-point": {
           "version": "1.0.0",
@@ -5980,7 +5999,8 @@
         "isarray": {
           "version": "1.0.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "minimatch": {
           "version": "3.0.4",
@@ -6008,6 +6028,7 @@
           "version": "1.1.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "minipass": "2.2.4"
           }
@@ -6023,12 +6044,14 @@
         "ms": {
           "version": "2.0.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "needle": {
           "version": "2.2.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "debug": "2.6.9",
             "iconv-lite": "0.4.21",
@@ -6039,6 +6062,7 @@
           "version": "0.10.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "detect-libc": "1.0.3",
             "mkdirp": "0.5.1",
@@ -6056,6 +6080,7 @@
           "version": "4.0.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "abbrev": "1.1.1",
             "osenv": "0.1.5"
@@ -6064,12 +6089,14 @@
         "npm-bundled": {
           "version": "1.0.3",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "npm-packlist": {
           "version": "1.1.10",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "ignore-walk": "3.0.1",
             "npm-bundled": "1.0.3"
@@ -6079,6 +6106,7 @@
           "version": "4.1.2",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "are-we-there-yet": "1.1.4",
             "console-control-strings": "1.1.0",
@@ -6094,7 +6122,8 @@
         "object-assign": {
           "version": "4.1.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "once": {
           "version": "1.4.0",
@@ -6107,17 +6136,20 @@
         "os-homedir": {
           "version": "1.0.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "os-tmpdir": {
           "version": "1.0.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "osenv": {
           "version": "0.1.5",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "os-homedir": "1.0.2",
             "os-tmpdir": "1.0.2"
@@ -6126,17 +6158,20 @@
         "path-is-absolute": {
           "version": "1.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "process-nextick-args": {
           "version": "2.0.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "rc": {
           "version": "1.2.7",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "deep-extend": "0.5.1",
             "ini": "1.3.5",
@@ -6147,7 +6182,8 @@
             "minimist": {
               "version": "1.2.0",
               "bundled": true,
-              "dev": true
+              "dev": true,
+              "optional": true
             }
           }
         },
@@ -6155,6 +6191,7 @@
           "version": "2.3.6",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "core-util-is": "1.0.2",
             "inherits": "2.0.3",
@@ -6169,6 +6206,7 @@
           "version": "2.6.2",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "glob": "7.1.2"
           }
@@ -6181,27 +6219,32 @@
         "safer-buffer": {
           "version": "2.1.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "sax": {
           "version": "1.2.4",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "semver": {
           "version": "5.5.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "set-blocking": {
           "version": "2.0.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "signal-exit": {
           "version": "3.0.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "string-width": {
           "version": "1.0.2",
@@ -6217,6 +6260,7 @@
           "version": "1.1.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "safe-buffer": "5.1.1"
           }
@@ -6232,12 +6276,14 @@
         "strip-json-comments": {
           "version": "2.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "tar": {
           "version": "4.4.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "chownr": "1.0.1",
             "fs-minipass": "1.2.5",
@@ -6251,12 +6297,14 @@
         "util-deprecate": {
           "version": "1.0.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "wide-align": {
           "version": "1.1.2",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "string-width": "1.0.2"
           }
@@ -9898,7 +9946,8 @@
       "version": "2.11.1",
       "resolved": "https://registry.npmjs.org/nan/-/nan-2.11.1.tgz",
       "integrity": "sha512-iji6k87OSXa0CcrLl9z+ZiYSuR2o+c0bGuNmXdrhTQTakxytAFsC56SArGYoiHlJlFoHSnvmhpceZJaXkVuOtA==",
-      "dev": true
+      "dev": true,
+      "optional": true
     },
     "nanomatch": {
       "version": "1.2.13",
@@ -10095,9 +10144,9 @@
       "dev": true
     },
     "normalize-url": {
-      "version": "4.1.0",
-      "resolved": "https://registry.npmjs.org/normalize-url/-/normalize-url-4.1.0.tgz",
-      "integrity": "sha512-X781mkWeK6PDMAZJfGn/wnwil4dV6pIdF9euiNqtA89uJvZuNDJO2YyJxiwpPhTQcF5pYUU1v+kcOxzYV6rZlA=="
+      "version": "3.3.0",
+      "resolved": "https://registry.npmjs.org/normalize-url/-/normalize-url-3.3.0.tgz",
+      "integrity": "sha512-U+JJi7duF1o+u2pynbp2zXDW2/PADgC30f0GsHZtRh+HOcXHnw137TrNlyxxRvWW5fjKd3bcLHPxofWuCjaeZg=="
     },
     "npm-path": {
       "version": "2.0.4",
diff --git a/package.json b/package.json
index 27749269..19ff09d4 100644
--- a/package.json
+++ b/package.json
@@ -44,7 +44,7 @@
   },
   "dependencies": {
     "schema-utils": "^1.0.0",
-    "normalize-url": "^4.1.0",
+    "normalize-url": "^3.3.0",
     "loader-utils": "^1.1.0",
     "webpack-sources": "^1.1.0"
   },