diff --git a/package-lock.json b/package-lock.json
index 49f748e..2631a17 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -993,6 +993,11 @@
         "minimatch": "^3.0.0"
       }
     },
+    "function-bind": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/function-bind/-/function-bind-1.1.1.tgz",
+      "integrity": "sha512-yIovAzMX49sF8Yl58fSCWJ5svSLuaibPxXQJFLmBObTuCr0Mf1KiPopGM9NiFjiYBCbfaa2Fh6breQ6ANVTI0A=="
+    },
     "gauge": {
       "version": "1.2.7",
       "resolved": "https://registry.npmjs.org/gauge/-/gauge-1.2.7.tgz",
@@ -1091,6 +1096,14 @@
         "har-schema": "^2.0.0"
       }
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+    "has": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/has/-/has-1.0.3.tgz",
+      "integrity": "sha512-f2dvO0VU6Oej7RkWJGrehjbzMAjFp5/VKPp5tTpWIV4JHHZK1/BxbFRtf/siA2SWTe09caDmVtYYzWEIbBS4zw==",
+      "requires": {
+        "function-bind": "^1.1.1"
+      }
+    },
     "has-symbol-support-x": {
       "version": "1.4.2",
       "resolved": "https://registry.npmjs.org/has-symbol-support-x/-/has-symbol-support-x-1.4.2.tgz",
@@ -1174,9 +1187,9 @@
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     },
     "interpret": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/interpret/-/interpret-1.1.0.tgz",
-      "integrity": "sha1-ftGxQQxqDg94z5XTuEQMY/eLhhQ="
+      "version": "1.4.0",
+      "resolved": "https://registry.npmjs.org/interpret/-/interpret-1.4.0.tgz",
+      "integrity": "sha512-agE4QfB2Lkp9uICn7BAqoscw4SZP9kTE2hxiFI3jBPmXJfdqiahTbUuKGsMoN2GtqL9AxhYioAcVvgsb1HvRbA=="
     },
     "invert-kv": {
       "version": "1.0.0",
@@ -1189,6 +1202,14 @@
       "integrity": "sha1-d8mYQFJ6qOyxqLppe4BkWnqSap0=",
       "dev": true
     },
+    "is-core-module": {
+      "version": "2.8.1",
+      "resolved": "https://registry.npmjs.org/is-core-module/-/is-core-module-2.8.1.tgz",
+      "integrity": "sha512-SdNCUs284hr40hFTFP6l0IfZ/RSrMXF3qgoRHd3/79unUTvrFO/JoXwkGm+5J/Oe3E/b5GsnG330uUNgRpu1PA==",
+      "requires": {
+        "has": "^1.0.3"
+      }
+    },
     "is-fullwidth-code-point": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-1.0.0.tgz",
@@ -1807,9 +1828,9 @@
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     },
     "path-parse": {
-      "version": "1.0.6",
-      "resolved": "https://registry.npmjs.org/path-parse/-/path-parse-1.0.6.tgz",
-      "integrity": "sha512-GSmOT2EbHrINBf9SR7CDELwlJ8AENk3Qn7OikK4nFYAu3Ote2+JYNVvkpAEQm3/TLNEJFD/xZJjzyxg3KBWOzw=="
+      "version": "1.0.7",
+      "resolved": "https://registry.npmjs.org/path-parse/-/path-parse-1.0.7.tgz",
+      "integrity": "sha512-LDJzPVEEEPR+y48z93A0Ed0yXb8pAByGWo/k5YYdYgpY2/2EsOsksJrq7lOHxryrVOn1ejG6oAp8ahvOIQD8sw=="
     },
     "pend": {
       "version": "1.2.0",
@@ -1961,11 +1982,13 @@
       "integrity": "sha1-KadZGEbK+RtuijzamRaD+V+NfUI="
     },
     "resolve": {
-      "version": "1.8.1",
-      "resolved": "https://registry.npmjs.org/resolve/-/resolve-1.8.1.tgz",
-      "integrity": "sha512-AicPrAC7Qu1JxPCZ9ZgCZlY35QgFnNqc+0LtbRNxnVw4TXvjQ72wnuL9JQcEBgXkI9JM8MsT9kaQoHcpCRJOYA==",
+      "version": "1.21.0",
+      "resolved": "https://registry.npmjs.org/resolve/-/resolve-1.21.0.tgz",
+      "integrity": "sha512-3wCbTpk5WJlyE4mSOtDLhqQmGFi0/TD9VPwmiolnk8U0wRgMEktqCXd3vy5buTO3tljvalNvKrjHEfrd2WpEKA==",
       "requires": {
-        "path-parse": "^1.0.5"
+        "is-core-module": "^2.8.0",
+        "path-parse": "^1.0.7",
+        "supports-preserve-symlinks-flag": "^1.0.0"
       }
     },
     "rimraf": {
@@ -2045,9 +2068,9 @@
       "integrity": "sha1-2kL0l0DAtC2yypcoVxyxkMmO/qM="
     },
     "shelljs": {
-      "version": "0.8.2",
-      "resolved": "https://registry.npmjs.org/shelljs/-/shelljs-0.8.2.tgz",
-      "integrity": "sha512-pRXeNrCA2Wd9itwhvLp5LZQvPJ0wU6bcjaTMywHHGX5XWhVN2nzSu7WV0q+oUY7mGK3mgSkDDzP3MgjqdyIgbQ==",
+      "version": "0.8.5",
+      "resolved": "https://registry.npmjs.org/shelljs/-/shelljs-0.8.5.tgz",
+      "integrity": "sha512-TiwcRcrkhHvbrZbnRcFYMLl30Dfov3HKqzp5tO5b4pt6G/SezKcYhmDg15zXVBswHmctSAQKznqNW2LO5tTDow==",
       "requires": {
         "glob": "^7.0.0",
         "interpret": "^1.0.0",
@@ -2181,6 +2204,11 @@
         "escape-string-regexp": "^1.0.2"
       }
     },
+    "supports-preserve-symlinks-flag": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/supports-preserve-symlinks-flag/-/supports-preserve-symlinks-flag-1.0.0.tgz",
+      "integrity": "sha512-ot0WnXS9fgdkgIcePe6RHNk1WA8+muPa6cSjeR3V8K27q9BB1rTE3R1p7Hv0z1ZyAc8s6Vvv8DIyWf681MAt0w=="
+    },
     "symbol-tree": {
       "version": "3.2.2",
       "resolved": "https://registry.npmjs.org/symbol-tree/-/symbol-tree-3.2.2.tgz",
diff --git a/package.json b/package.json
index 42fb95d..9f3874a 100644
--- a/package.json
+++ b/package.json
@@ -37,7 +37,7 @@
     "mic": "^2.1.2",
     "request": "^2.88.0",
     "require-reload": "^0.2.2",
-    "shelljs": "^0.8.2",
+    "shelljs": "^0.8.5",
     "speakable": "^0.4.0",
     "yargs": "^12.0.1"
   },