diff --git a/package-lock.json b/package-lock.json
index 09632e9..9282165 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -4,6 +4,41 @@
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   "requires": true,
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@@ -1273,17 +1287,6 @@
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@@ -1305,12 +1308,6 @@
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@@ -1794,24 +1791,6 @@
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-      "resolved": "https://registry.npmjs.org/extender/-/extender-0.0.10.tgz",
-      "integrity": "sha1-WJwHSCvmGhRgttgfnCSqZ+jzJM0=",
-      "dev": true,
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@@ -1823,15 +1802,13 @@
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-      "resolved": "https://registry.npmjs.org/fast-csv/-/fast-csv-2.0.1.tgz",
-      "integrity": "sha1-kcHONAuws/MmBTKyEuN5jbTo7VM=",
+      "version": "4.3.6",
+      "resolved": "https://registry.npmjs.org/fast-csv/-/fast-csv-4.3.6.tgz",
+      "integrity": "sha512-2RNSpuwwsJGP0frGsOmTb9oUF+VkFSM4SyLTDgwf2ciHWTarN0lQTC+F2f/t5J9QjW+c65VFIAAu85GsvMIusw==",
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-        "is-extended": "0.0.10",
-        "object-extended": "0.0.7",
-        "string-extended": "0.0.8"
+        "@fast-csv/format": "4.3.5",
+        "@fast-csv/parse": "4.3.6"
       }
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@@ -2317,15 +2294,6 @@
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       "dev": true
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-      "resolved": "https://registry.npmjs.org/is-extended/-/is-extended-0.0.10.tgz",
-      "integrity": "sha1-JE4UDfdbscmjEG9BL/GC+1NKbWI=",
-      "dev": true,
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@@ -2599,6 +2567,54 @@
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       "integrity": "sha1-tEf2ZwoEVbv+7dETku/zMOoJdUg="
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+    "lodash.escaperegexp": {
+      "version": "4.1.2",
+      "resolved": "https://registry.npmjs.org/lodash.escaperegexp/-/lodash.escaperegexp-4.1.2.tgz",
+      "integrity": "sha1-ZHYsSGGAglGKw99Mz11YhtriA0c=",
+      "dev": true
+    },
+    "lodash.groupby": {
+      "version": "4.6.0",
+      "resolved": "https://registry.npmjs.org/lodash.groupby/-/lodash.groupby-4.6.0.tgz",
+      "integrity": "sha1-Cwih3PaDl8OXhVwyOXg4Mt90A9E=",
+      "dev": true
+    },
+    "lodash.isboolean": {
+      "version": "3.0.3",
+      "resolved": "https://registry.npmjs.org/lodash.isboolean/-/lodash.isboolean-3.0.3.tgz",
+      "integrity": "sha1-bC4XHbKiV82WgC/UOwGyDV9YcPY=",
+      "dev": true
+    },
+    "lodash.isequal": {
+      "version": "4.5.0",
+      "resolved": "https://registry.npmjs.org/lodash.isequal/-/lodash.isequal-4.5.0.tgz",
+      "integrity": "sha1-QVxEePK8wwEgwizhDtMib30+GOA=",
+      "dev": true
+    },
+    "lodash.isfunction": {
+      "version": "3.0.9",
+      "resolved": "https://registry.npmjs.org/lodash.isfunction/-/lodash.isfunction-3.0.9.tgz",
+      "integrity": "sha512-AirXNj15uRIMMPihnkInB4i3NHeb4iBtNg9WRWuK2o31S+ePwwNmDPaTL3o7dTJ+VXNZim7rFs4rxN4YU1oUJw==",
+      "dev": true
+    },
+    "lodash.isnil": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/lodash.isnil/-/lodash.isnil-4.0.0.tgz",
+      "integrity": "sha1-SeKM1VkBNFjIFMVHnTxmOiG/qmw=",
+      "dev": true
+    },
+    "lodash.isundefined": {
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/lodash.isundefined/-/lodash.isundefined-3.0.1.tgz",
+      "integrity": "sha1-I+89lTVWUgOmbO/VuDD4SJEa+0g=",
+      "dev": true
+    },
+    "lodash.uniq": {
+      "version": "4.5.0",
+      "resolved": "https://registry.npmjs.org/lodash.uniq/-/lodash.uniq-4.5.0.tgz",
+      "integrity": "sha1-0CJTc662Uq3BvILklFM5qEJ1R3M=",
+      "dev": true
+    },
     "log-symbols": {
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       "resolved": "https://repo.socrata.com:443/artifactory/api/npm/npm-virtual/log-symbols/-/log-symbols-2.2.0.tgz",
@@ -3161,17 +3177,6 @@
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-      "integrity": "sha1-hP0j9WsVWCrrPoiwXLVdJDLWijM=",
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@@ -4103,18 +4108,6 @@
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-      "resolved": "https://registry.npmjs.org/string-extended/-/string-extended-0.0.8.tgz",
-      "integrity": "sha1-dBlX3/SHsCcqee7FpE8jnubxfM0=",
-      "dev": true,
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-        "date-extended": "~0.0.3",
-        "extended": "~0.0.3",
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       "resolved": "https://repo.socrata.com:443/artifactory/api/npm/npm-virtual/string-width/-/string-width-1.0.2.tgz",
diff --git a/package.json b/package.json
index d73aa84..ad88e54 100644
--- a/package.json
+++ b/package.json
@@ -39,7 +39,7 @@
     "clear": "0.0.1",
     "codeclimate-test-reporter": "0.5.1",
     "csv": "5.3.0",
-    "fast-csv": "2.0.1",
+    "fast-csv": "4.3.6",
     "fs-promise": "0.5.0",
     "jshint": "2.10.3",
     "mkdirp": "0.5.1",