diff --git a/package-lock.json b/package-lock.json
index ed6bf73..c424db7 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -98,7 +98,7 @@
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         "util": {
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-          "resolved": "http://registry.npmjs.org/util/-/util-0.10.3.tgz",
+          "resolved": "https://registry.npmjs.org/util/-/util-0.10.3.tgz",
           "integrity": "sha1-evsa/lCAUkZInj23/g7TeTNqwPk=",
           "dev": true,
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@@ -198,7 +198,7 @@
       "dependencies": {
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           "version": "1.1.7",
-          "resolved": "http://registry.npmjs.org/resolve/-/resolve-1.1.7.tgz",
+          "resolved": "https://registry.npmjs.org/resolve/-/resolve-1.1.7.tgz",
           "integrity": "sha1-IDEU2CrSxe2ejgQRs5ModeiJ6Xs=",
           "dev": true
         }
@@ -400,7 +400,7 @@
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         "convert-source-map": {
           "version": "1.1.3",
-          "resolved": "http://registry.npmjs.org/convert-source-map/-/convert-source-map-1.1.3.tgz",
+          "resolved": "https://registry.npmjs.org/convert-source-map/-/convert-source-map-1.1.3.tgz",
           "integrity": "sha1-SCnId+n+SbMWHzvzZziI4gRpmGA=",
           "dev": true
         },
@@ -1293,7 +1293,7 @@
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     "nan": {
       "version": "2.10.0",
-      "resolved": "http://registry.npmjs.org/nan/-/nan-2.10.0.tgz",
+      "resolved": "https://registry.npmjs.org/nan/-/nan-2.10.0.tgz",
       "integrity": "sha512-bAdJv7fBLhWC+/Bls0Oza+mvTaNQtP+1RyhhhvD95pgUJz6XM5IzgmxOkItJ9tkoCiplvAnXI1tNmmUD/eScyA=="
     },
     "number-to-bn": {
@@ -1654,12 +1654,38 @@
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-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/static-eval/-/static-eval-2.0.0.tgz",
-      "integrity": "sha512-6flshd3F1Gwm+Ksxq463LtFd1liC77N/PX1FVVc3OzL3hAmo2fwHFbuArkcfi7s9rTNsLEhcRmXGFZhlgy40uw==",
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/static-eval/-/static-eval-2.1.1.tgz",
+      "integrity": "sha512-MgWpQ/ZjGieSVB3eOJVs4OA2LT/q1vx98KPCTTQPzq/aLr0YUXTsgryTXr4SLfR0ZfUUCiedM9n/ABeDIyy4mA==",
       "dev": true,
       "requires": {
-        "escodegen": "^1.8.1"
+        "escodegen": "^2.1.0"
+      },
+      "dependencies": {
+        "escodegen": {
+          "version": "2.1.0",
+          "resolved": "https://registry.npmjs.org/escodegen/-/escodegen-2.1.0.tgz",
+          "integrity": "sha512-2NlIDTwUWJN0mRPQOdtQBzbUHvdGY2P1VXSyU83Q3xKxM7WHX2Ql8dKq782Q9TgQUNOLEzEYu9bzLNj1q88I5w==",
+          "dev": true,
+          "requires": {
+            "esprima": "^4.0.1",
+            "estraverse": "^5.2.0",
+            "esutils": "^2.0.2",
+            "source-map": "~0.6.1"
+          }
+        },
+        "esprima": {
+          "version": "4.0.1",
+          "resolved": "https://registry.npmjs.org/esprima/-/esprima-4.0.1.tgz",
+          "integrity": "sha512-eGuFFw7Upda+g4p+QHvnW0RyTX/SVeJBDM/gCtMARO0cLuT2HcEKnTPvhjV6aGeqrCB/sbNop0Kszm0jsaWU4A==",
+          "dev": true
+        },
+        "estraverse": {
+          "version": "5.3.0",
+          "resolved": "https://registry.npmjs.org/estraverse/-/estraverse-5.3.0.tgz",
+          "integrity": "sha512-MMdARuVEQziNTeJD8DgMqmhwR11BRQ/cBP+pLtYdSTnf3MIO8fFeiINEbX36ZdNlfU/7A9f3gUw49B3oQsvwBA==",
+          "dev": true
+        }
       }
     },
     "static-module": {