diff --git a/package-lock.json b/package-lock.json
index 7ca7acb..07b3504 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2600,7 +2600,7 @@
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-            "resolved": "http://registry.npmjs.org/@babel/highlight/-/highlight-7.0.0.tgz",
+            "resolved": "https://registry.npmjs.org/@babel/highlight/-/highlight-7.0.0.tgz",
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@@ -2611,7 +2611,7 @@
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-                    "resolved": "http://registry.npmjs.org/js-tokens/-/js-tokens-4.0.0.tgz",
+                    "resolved": "https://registry.npmjs.org/js-tokens/-/js-tokens-4.0.0.tgz",
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@@ -5092,9 +5092,9 @@
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-            "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.1.1.tgz",
-            "integrity": "sha1-fSWuBbuK0fm2mRCOEJTs14hK3B8=",
+            "version": "7.1.1",
+            "resolved": "https://registry.npmjs.org/acorn/-/acorn-7.1.1.tgz",
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@@ -5105,6 +5105,14 @@
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                 "acorn": "^6.0.1",
                 "acorn-walk": "^6.0.1"
+            },
+            "dependencies": {
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+                    "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.4.1.tgz",
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+                    "dev": true
+                }
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@@ -7293,7 +7301,7 @@
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-            "resolved": "http://registry.npmjs.org/cssesc/-/cssesc-0.1.0.tgz",
+            "resolved": "https://registry.npmjs.org/cssesc/-/cssesc-0.1.0.tgz",
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@@ -9852,7 +9860,7 @@
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-            "resolved": "http://registry.npmjs.org/has-flag/-/has-flag-3.0.0.tgz",
+            "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-3.0.0.tgz",
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@@ -10602,7 +10610,7 @@
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-            "resolved": "http://registry.npmjs.org/is-arrayish/-/is-arrayish-0.2.1.tgz",
+            "resolved": "https://registry.npmjs.org/is-arrayish/-/is-arrayish-0.2.1.tgz",
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@@ -11343,7 +11351,7 @@
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-            "resolved": "http://registry.npmjs.org/jasmine-core/-/jasmine-core-2.99.1.tgz",
+            "resolved": "https://registry.npmjs.org/jasmine-core/-/jasmine-core-2.99.1.tgz",
             "integrity": "sha1-5kAN8ea1bhMLYcS80JPap/boyhU=",
             "dev": true
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@@ -12172,6 +12180,12 @@
                 "jsdom": "^13.0.0"
             },
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+                "acorn": {
+                    "version": "6.4.1",
+                    "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.4.1.tgz",
+                    "integrity": "sha512-ZVA9k326Nwrj3Cj9jlh3wGFutC2ZornPNARZwsNYqQYgN0EsV2d53w5RN/co65Ohn4sUAUtb1rSUAOD6XN9idA==",
+                    "dev": true
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                     "resolved": "https://registry.npmjs.org/jsdom/-/jsdom-13.2.0.tgz",
@@ -13743,7 +13757,7 @@
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-            "resolved": "http://registry.npmjs.org/js-tokens/-/js-tokens-3.0.2.tgz",
+            "resolved": "https://registry.npmjs.org/js-tokens/-/js-tokens-3.0.2.tgz",
             "integrity": "sha1-mGbfOVECEw449/mWvOtlRDIJwls=",
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@@ -13797,9 +13811,9 @@
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-                    "resolved": "https://registry.npmjs.org/acorn/-/acorn-5.7.3.tgz",
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+                    "version": "5.7.4",
+                    "resolved": "https://registry.npmjs.org/acorn/-/acorn-5.7.4.tgz",
+                    "integrity": "sha512-1D++VG7BhrtvQpNbBzovKNc1FLGGEE/oGe7b9xJm/RFHMBeUaUGpluV9RLjZa47YFdPcDAenEYuq9pQPcMdLJg==",
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@@ -15048,7 +15062,7 @@
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         "mime-db": {
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-            "resolved": "http://registry.npmjs.org/mime-db/-/mime-db-1.40.0.tgz",
+            "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.40.0.tgz",
             "integrity": "sha1-plBX6ZjbCQ9zKmj2wnbTh9QSbDI=",
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@@ -18077,14 +18091,6 @@
                 "@types/estree": "*",
                 "@types/node": "*",
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-            },
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-                    "resolved": "https://registry.npmjs.org/acorn/-/acorn-7.1.0.tgz",
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-                    "dev": true
-                }
             }
         },
         "rollup-plugin-commonjs": {