diff --git a/package-lock.json b/package-lock.json
index 3396c55..8abe31a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -4,6 +4,47 @@
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+        "lodash.isboolean": "^3.0.3",
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+        "lodash.groupby": "^4.6.0",
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-      "integrity": "sha1-I4AtV90b94GIE/4MMuhRqG2iZ8k=",
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@@ -431,11 +443,6 @@
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-      "integrity": "sha1-BHit/5VkwAT1Hfc9i8E0AZ0o3N4="
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@@ -452,7 +459,7 @@
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-          "resolved": "http://registry.npmjs.org/domelementtype/-/domelementtype-1.1.3.tgz",
+          "resolved": "https://registry.npmjs.org/domelementtype/-/domelementtype-1.1.3.tgz",
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@@ -498,37 +505,18 @@
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-      "resolved": "https://registry.npmjs.org/extender/-/extender-0.0.10.tgz",
-      "integrity": "sha1-WJwHSCvmGhRgttgfnCSqZ+jzJM0=",
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-      "resolved": "https://registry.npmjs.org/fast-csv/-/fast-csv-2.5.0.tgz",
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+      "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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-        "object-extended": "0.0.7",
-        "safer-buffer": "^2.1.2",
-        "string-extended": "0.0.8"
+        "@fast-csv/format": "4.3.5",
+        "@fast-csv/parse": "4.3.6"
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@@ -627,14 +615,6 @@
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-      "resolved": "https://registry.npmjs.org/is-extended/-/is-extended-0.0.10.tgz",
-      "integrity": "sha1-JE4UDfdbscmjEG9BL/GC+1NKbWI=",
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@@ -681,6 +661,46 @@
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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="
+    },
+    "lodash.groupby": {
+      "version": "4.6.0",
+      "resolved": "https://registry.npmjs.org/lodash.groupby/-/lodash.groupby-4.6.0.tgz",
+      "integrity": "sha1-Cwih3PaDl8OXhVwyOXg4Mt90A9E="
+    },
+    "lodash.isboolean": {
+      "version": "3.0.3",
+      "resolved": "https://registry.npmjs.org/lodash.isboolean/-/lodash.isboolean-3.0.3.tgz",
+      "integrity": "sha1-bC4XHbKiV82WgC/UOwGyDV9YcPY="
+    },
+    "lodash.isequal": {
+      "version": "4.5.0",
+      "resolved": "https://registry.npmjs.org/lodash.isequal/-/lodash.isequal-4.5.0.tgz",
+      "integrity": "sha1-QVxEePK8wwEgwizhDtMib30+GOA="
+    },
+    "lodash.isfunction": {
+      "version": "3.0.9",
+      "resolved": "https://registry.npmjs.org/lodash.isfunction/-/lodash.isfunction-3.0.9.tgz",
+      "integrity": "sha512-AirXNj15uRIMMPihnkInB4i3NHeb4iBtNg9WRWuK2o31S+ePwwNmDPaTL3o7dTJ+VXNZim7rFs4rxN4YU1oUJw=="
+    },
+    "lodash.isnil": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/lodash.isnil/-/lodash.isnil-4.0.0.tgz",
+      "integrity": "sha1-SeKM1VkBNFjIFMVHnTxmOiG/qmw="
+    },
+    "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="
+    },
+    "lodash.uniq": {
+      "version": "4.5.0",
+      "resolved": "https://registry.npmjs.org/lodash.uniq/-/lodash.uniq-4.5.0.tgz",
+      "integrity": "sha1-0CJTc662Uq3BvILklFM5qEJ1R3M="
+    },
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@@ -712,16 +732,6 @@
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-      "integrity": "sha1-hP0j9WsVWCrrPoiwXLVdJDLWijM=",
-      "requires": {
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-        "extended": "~0.0.3",
-        "is-extended": "~0.0.3"
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@@ -818,17 +828,6 @@
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-      "resolved": "https://registry.npmjs.org/string-extended/-/string-extended-0.0.8.tgz",
-      "integrity": "sha1-dBlX3/SHsCcqee7FpE8jnubxfM0=",
-      "requires": {
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-        "date-extended": "~0.0.3",
-        "extended": "~0.0.3",
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diff --git a/package.json b/package.json
index ee7980c..ee12e41 100644
--- a/package.json
+++ b/package.json
@@ -7,7 +7,7 @@
     "axios": "^0.18.0",
     "cheerio": "^1.0.0-rc.2",
     "d3": "^5.9.1",
-    "fast-csv": "^2.5.0",
+    "fast-csv": "^4.3.6",
     "request": "^2.88.0"
   },
   "devDependencies": {},