diff --git a/package-lock.json b/package-lock.json
index 594614b..101b06c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -44,6 +44,29 @@
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+      "resolved": "https://registry.npmjs.org/@nodelib/fs.scandir/-/fs.scandir-2.1.5.tgz",
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+      "resolved": "https://registry.npmjs.org/@nodelib/fs.stat/-/fs.stat-2.0.5.tgz",
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+      "resolved": "https://registry.npmjs.org/@nodelib/fs.walk/-/fs.walk-1.2.8.tgz",
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@@ -131,11 +154,6 @@
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+      "resolved": "https://registry.npmjs.org/braces/-/braces-3.0.3.tgz",
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@@ -206,11 +223,6 @@
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-      "resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz",
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@@ -361,11 +373,39 @@
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       "integrity": "sha1-ewUhjd+WZ79/Nwv3/bLLFf3Qqkk="
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+      "resolved": "https://registry.npmjs.org/fast-glob/-/fast-glob-3.3.3.tgz",
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+        "@nodelib/fs.walk": "^1.2.3",
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+      "resolved": "https://registry.npmjs.org/fastq/-/fastq-1.19.1.tgz",
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+      "resolved": "https://registry.npmjs.org/fill-range/-/fill-range-7.1.1.tgz",
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@@ -444,17 +479,12 @@
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+    "glob-parent": {
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+      "resolved": "https://registry.npmjs.org/glob-parent/-/glob-parent-5.1.2.tgz",
+      "integrity": "sha512-AOIgSQCepiJYwP3ARnGx+5VnTu2HBYdzbGP45eLw1vr3zB3vZLeyed1sC9hnbcOc9/SrMyM5RPQrkGz4aS9Zow==",
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-        "inherits": "2",
-        "minimatch": "^3.0.4",
-        "once": "^1.3.0",
-        "path-is-absolute": "^1.0.0"
+        "is-glob": "^4.0.1"
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@@ -536,15 +566,6 @@
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-      "integrity": "sha1-Sb1jMdfQLQwJvJEKEHW6gWW1bfk=",
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-        "wrappy": "1"
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@@ -570,11 +591,29 @@
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+    "is-extglob": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/is-extglob/-/is-extglob-2.1.1.tgz",
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       "integrity": "sha1-o7MKXE8ZkYMWeqq5O+764937ZU8="
     },
+    "is-glob": {
+      "version": "4.0.3",
+      "resolved": "https://registry.npmjs.org/is-glob/-/is-glob-4.0.3.tgz",
+      "integrity": "sha512-xelSayHH36ZgE7ZWhli7pW34hNbNl8Ojv5KVmkJD4hBdD3th8Tfk9vYasLM+mXWOZhFkgZfxhLSnrwRr4elSSg==",
+      "requires": {
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+      }
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+    "is-number": {
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/is-number/-/is-number-7.0.0.tgz",
+      "integrity": "sha512-41Cifkg6e8TylSpdtTpeLVMqvSBEVzTttHvERD741+pnZ8ANv0004MRL43QKPDlK9cGvNp6NZWZUBlbGXYxxng=="
+    },
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@@ -724,11 +763,25 @@
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       }
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+      "resolved": "https://registry.npmjs.org/merge2/-/merge2-1.4.1.tgz",
+      "integrity": "sha512-8q7VEgMJW4J8tcfVPy8g09NcQwZdbwFEqhe/WZkoIzjn/3TGDwtOCYtXGxA3O8tPzpczCCDgv+P2P5y00ZJOOg=="
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       "resolved": "https://registry.npmjs.org/methmeth/-/methmeth-1.1.0.tgz",
       "integrity": "sha1-6AomYY5S9cQiKGG7dIUQvRDikIk="
     },
+    "micromatch": {
+      "version": "4.0.8",
+      "resolved": "https://registry.npmjs.org/micromatch/-/micromatch-4.0.8.tgz",
+      "integrity": "sha512-PXwfBhYu0hBCPw8Dn0E+WDYb7af3dSLVWKi3HGv84IdF4TyFoC0ysxFd0Goxw7nSv4T/PzEJQxsYsEiFCKo2BA==",
+      "requires": {
+        "braces": "^3.0.3",
+        "picomatch": "^2.3.1"
+      }
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       "resolved": "https://registry.npmjs.org/mime/-/mime-2.4.3.tgz",
@@ -752,14 +805,6 @@
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-      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.0.4.tgz",
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       "resolved": "https://registry.npmjs.org/modelo/-/modelo-4.2.3.tgz",
@@ -862,11 +907,6 @@
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-      "resolved": "https://registry.npmjs.org/path-is-absolute/-/path-is-absolute-1.0.1.tgz",
-      "integrity": "sha1-F0uSaHNVNP+8es5r9TpanhtcX18="
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@@ -882,6 +922,11 @@
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       "integrity": "sha1-Ywn04OX6kT7BxpMHrjZLSzd8nns="
     },
+    "picomatch": {
+      "version": "2.3.1",
+      "resolved": "https://registry.npmjs.org/picomatch/-/picomatch-2.3.1.tgz",
+      "integrity": "sha512-JU3teHTNjmE2VCGFzuY8EXzCDVwEqB2a8fsIvwaStHhAWJEeVd1o1QD80CU6+ZdEXXSLbSsuLwJjkCBWqRQUVA=="
+    },
     "pify": {
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       "resolved": "https://registry.npmjs.org/pify/-/pify-4.0.1.tgz",
@@ -921,6 +966,11 @@
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+    "queue-microtask": {
+      "version": "1.2.3",
+      "resolved": "https://registry.npmjs.org/queue-microtask/-/queue-microtask-1.2.3.tgz",
+      "integrity": "sha512-NuaNSa6flKT5JaSYQzJok04JzTL1CA6aGhv5rfLW3PgqA+M2ChpZQnAC8h8i4ZFkBS8X5RqkDBHA7r4hej3K9A=="
+    },
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       "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz",
@@ -1002,6 +1052,19 @@
         "through2": "^2.0.0"
       }
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+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/reusify/-/reusify-1.1.0.tgz",
+      "integrity": "sha512-g6QUff04oZpHs0eG5p83rFLhHeV00ug/Yf9nZM6fLeUrPguBTkTQOdpAWWspMh55TZfVQDPaN3NQJfbVRAxdIw=="
+    },
+    "run-parallel": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/run-parallel/-/run-parallel-1.2.0.tgz",
+      "integrity": "sha512-5l4VyZR86LZ/lDxZTR6jqL8AFE2S0IFLMP26AbjsLVADxHdhB/c0GUsH+y39UfCi3dzz8OlQuPmnaJOMoDHQBA==",
+      "requires": {
+        "queue-microtask": "^1.2.2"
+      }
+    },
     "safe-buffer": {
       "version": "5.1.2",
       "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.2.tgz",
@@ -1036,11 +1099,12 @@
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-      "version": "0.8.3",
-      "resolved": "https://registry.npmjs.org/shelljs/-/shelljs-0.8.3.tgz",
-      "integrity": "sha512-fc0BKlAWiLpwZljmOvAOTE/gXawtCoNrP5oaY7KIaQbbyHeQVg01pSEuEGvGh3HEdBU4baCD7wQBwADmM/7f7A==",
+      "version": "0.9.0",
+      "resolved": "https://registry.npmjs.org/shelljs/-/shelljs-0.9.0.tgz",
+      "integrity": "sha512-uwlECU3w0BCxLXEZW88et6rHF8Wt3xdVgoiVzDzVBmEqjzJG7t4rPmWF/9L40aCk3/bD5Z44/CoU8V6wIeUmxQ==",
       "requires": {
-        "glob": "^7.0.0",
+        "execa": "^1.0.0",
+        "fast-glob": "^3.3.2",
         "interpret": "^1.0.0",
         "rechoir": "^0.6.2"
       }
@@ -1088,6 +1152,14 @@
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       "integrity": "sha1-1cdSgl5TZ+eG944Y5EXqIjoVWVI="
     },
+    "string_decoder": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.1.1.tgz",
+      "integrity": "sha512-n/ShnvDi6FHbbVfviro+WojiFzv+s8MPMHBczVePfUpDJLwoLT0ht1l4YwBCbi8pJAveEEdnkHyPyTP/mzRfwg==",
+      "requires": {
+        "safe-buffer": "~5.1.0"
+      }
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     "string-format-obj": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/string-format-obj/-/string-format-obj-1.1.1.tgz",
@@ -1102,14 +1174,6 @@
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-      "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.1.1.tgz",
-      "integrity": "sha512-n/ShnvDi6FHbbVfviro+WojiFzv+s8MPMHBczVePfUpDJLwoLT0ht1l4YwBCbi8pJAveEEdnkHyPyTP/mzRfwg==",
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       "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-4.0.0.tgz",
@@ -1137,6 +1201,14 @@
         "xtend": "~4.0.1"
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+    "to-regex-range": {
+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/to-regex-range/-/to-regex-range-5.0.1.tgz",
+      "integrity": "sha512-65P7iz6X5yEr1cwcgvQxbbIw7Uk3gOy5dIdtZ4rDveLqhrdJP+Li/Hx6tyK0NEb+2GCyneCMJiGqrADCSNk8sQ==",
+      "requires": {
+        "is-number": "^7.0.0"
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     "tough-cookie": {
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diff --git a/package.json b/package.json
index c3fe6fb..3dd6eb4 100644
--- a/package.json
+++ b/package.json
@@ -6,6 +6,6 @@
   "dependencies": {
     "jsonschema-bigquery": "3.0.0",
     "commander": "~2.20.0",
-    "shelljs": "~0.8.3"
+    "shelljs": "~0.9.0"
   }
 }