diff --git a/package-lock.json b/package-lock.json
index 8a51ead..0cc3330 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -538,23 +538,22 @@
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-      "resolved": "https://registry.npmjs.org/coveralls/-/coveralls-3.0.4.tgz",
-      "integrity": "sha512-eyqUWA/7RT0JagiL0tThVhjbIjoiEUyWCjtUJoOPcWoeofP5WK/jb2OJYoBFrR6DvplR+AxOyuBqk4JHkk5ykA==",
+      "version": "3.0.10",
+      "resolved": "https://registry.npmjs.org/coveralls/-/coveralls-3.0.10.tgz",
+      "integrity": "sha512-HW0W5p9F95ww1mHyZP+mvIbHtz7VVwafngnR4HbNjedoH33QSpcl86hdCGBvMwnMV4ut8/Tp4IAIFpX05Kr92g==",
       "dev": true,
       "requires": {
-        "growl": "~> 1.10.0",
-        "js-yaml": "^3.11.0",
-        "lcov-parse": "^0.0.10",
+        "js-yaml": "^3.13.1",
+        "lcov-parse": "^1.0.0",
         "log-driver": "^1.2.7",
-        "minimist": "^1.2.0",
-        "request": "^2.86.0"
+        "minimist": "^1.2.5",
+        "request": "^2.88.0"
       },
       "dependencies": {
         "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
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@@ -1815,9 +1814,9 @@
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-      "resolved": "https://registry.npmjs.org/lcov-parse/-/lcov-parse-0.0.10.tgz",
-      "integrity": "sha1-GwuP+ayceIklBYK3C3ExXZ2m2aM=",
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/lcov-parse/-/lcov-parse-1.0.0.tgz",
+      "integrity": "sha1-6w1GtUER68VhrLTECO+TY73I9+A=",
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@@ -4112,9 +4111,9 @@
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-      "version": "1.1.33",
-      "resolved": "https://registry.npmjs.org/psl/-/psl-1.1.33.tgz",
-      "integrity": "sha512-LTDP2uSrsc7XCb5lO7A8BI1qYxRe/8EqlRvMeEl6rsnYAqDOl8xHR+8lSAIVfrNaSAlTPTNOCgNjWcoUL3AZsw==",
+      "version": "1.7.0",
+      "resolved": "https://registry.npmjs.org/psl/-/psl-1.7.0.tgz",
+      "integrity": "sha512-5NsSEDv8zY70ScRnOTn7bK7eanl2MvFrOrS/R6x+dBt5g1ghnj9Zv90kO8GwT8gxcu2ANyFprnFYB85IogIJOQ==",
       "dev": true
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     "publish": {
@@ -4217,9 +4216,9 @@
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-      "version": "2.88.0",
-      "resolved": "https://registry.npmjs.org/request/-/request-2.88.0.tgz",
-      "integrity": "sha512-NAqBSrijGLZdM0WZNsInLJpkJokL72XYjUpnB0iwsRgxh7dB6COrHnTBNwN0E+lHDAJzu7kLAkDeY08z2/A0hg==",
+      "version": "2.88.2",
+      "resolved": "https://registry.npmjs.org/request/-/request-2.88.2.tgz",
+      "integrity": "sha512-MsvtOrfG9ZcrOwAW+Qi+F6HbD0CWXEh9ou77uOb7FM2WPhwT7smM833PzanhJLsgXjN89Ir6V2PczXNnMpwKhw==",
       "dev": true,
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@@ -4229,7 +4228,7 @@
         "extend": "~3.0.2",
         "forever-agent": "~0.6.1",
         "form-data": "~2.3.2",
-        "har-validator": "~5.1.0",
+        "har-validator": "~5.1.3",
         "http-signature": "~1.2.0",
         "is-typedarray": "~1.0.0",
         "isstream": "~0.1.2",
@@ -4239,7 +4238,7 @@
         "performance-now": "^2.1.0",
         "qs": "~6.5.2",
         "safe-buffer": "^5.1.2",
-        "tough-cookie": "~2.4.3",
+        "tough-cookie": "~2.5.0",
         "tunnel-agent": "^0.6.0",
         "uuid": "^3.3.2"
       }
@@ -4701,21 +4700,13 @@
       "dev": true
     },
     "tough-cookie": {
-      "version": "2.4.3",
-      "resolved": "https://registry.npmjs.org/tough-cookie/-/tough-cookie-2.4.3.tgz",
-      "integrity": "sha512-Q5srk/4vDM54WJsJio3XNn6K2sCG+CQ8G5Wz6bZhRZoAe/+TxjWB/GlFAnYEbkYVlON9FMk/fE3h2RLpPXo4lQ==",
+      "version": "2.5.0",
+      "resolved": "https://registry.npmjs.org/tough-cookie/-/tough-cookie-2.5.0.tgz",
+      "integrity": "sha512-nlLsUzgm1kfLXSXfRZMc1KLAugd4hqJHDTvc2hDIwS3mZAfMEuMbc03SujMF+GEcpaX/qboeycw6iO8JwVv2+g==",
       "dev": true,
       "requires": {
-        "psl": "^1.1.24",
-        "punycode": "^1.4.1"
-      },
-      "dependencies": {
-        "punycode": {
-          "version": "1.4.1",
-          "resolved": "https://registry.npmjs.org/punycode/-/punycode-1.4.1.tgz",
-          "integrity": "sha1-wNWmOycYgArY4esPpSachN1BhF4=",
-          "dev": true
-        }
+        "psl": "^1.1.28",
+        "punycode": "^2.1.1"
       }
     },
     "trim-right": {
diff --git a/package.json b/package.json
index da9c014..ba7b4ab 100644
--- a/package.json
+++ b/package.json
@@ -38,7 +38,7 @@
   "license": "MIT",
   "devDependencies": {
     "chai": "^4.1.1",
-    "coveralls": "^3.0.4",
+    "coveralls": "^3.0.10",
     "env-test": "^1.0.0",
     "eslint": "^5.16.0",
     "eslint-config-airbnb-base": "^13.1.0",