diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..fe3b60a
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,26 @@
+name: Node.js CI
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  test:
+
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version: [18.x, 19.x]
+
+    steps:
+      - uses: actions/checkout@v3
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v3
+        with:
+          node-version: ${{ matrix.node-version }}
+      - run: npm ci
+      - run: npm run lint
+      - run: npm test
diff --git a/README.md b/README.md
index 7ad658b..1d083b8 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,5 @@
 # csval
 
-[![Build Status](https://travis-ci.org/travishorn/csval.svg?branch=master)](https://travis-ci.org/travishorn/csval)
-
 Check CSV files against a set of validation rules.
 
 ## Validation Checks
diff --git a/package-lock.json b/package-lock.json
index 5b73b60..7db3553 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -179,10 +179,11 @@
       }
     },
     "node_modules/ansi-colors": {
-      "version": "4.1.1",
-      "resolved": "https://registry.npmjs.org/ansi-colors/-/ansi-colors-4.1.1.tgz",
-      "integrity": "sha512-JoX0apGbHaUJBNl6yF+p6JAFYZ666/hhCGKN5t9QFjbJQKUU/g8MNbFDbvfrgKXvI1QpZplPOnwIo99lX/AAmA==",
+      "version": "4.1.3",
+      "resolved": "https://registry.npmjs.org/ansi-colors/-/ansi-colors-4.1.3.tgz",
+      "integrity": "sha512-/6w/C21Pm1A7aZitlI5Ni/2J6FFQN8i1Cvz3kHABAAbw93v/NlvKdVOqz7CCWz/3iv/JplRSEEZ83XION15ovw==",
       "dev": true,
+      "license": "MIT",
       "engines": {
         "node": ">=6"
       }
@@ -265,12 +266,12 @@
       }
     },
     "node_modules/braces": {
-      "version": "3.0.2",
-      "resolved": "https://registry.npmjs.org/braces/-/braces-3.0.2.tgz",
-      "integrity": "sha512-b8um+L1RzM3WDSzvhm6gIz1yfTbBt6YTlcEKAvsmqCZZFw46z626lVj9j1yEPW33H5H+lBQpZMP1k8l+78Ha0A==",
+      "version": "3.0.3",
+      "resolved": "https://registry.npmjs.org/braces/-/braces-3.0.3.tgz",
+      "integrity": "sha512-yQbXgO/OSZVD2IsiLlro+7Hf6Q18EJrKSEsdoMzKePKXct3gvD8oLcOQdIzGupr5Fj+EDe8gO/lxc1BzfMpxvA==",
       "dev": true,
       "dependencies": {
-        "fill-range": "^7.0.1"
+        "fill-range": "^7.1.1"
       },
       "engines": {
         "node": ">=8"
@@ -455,12 +456,13 @@
       }
     },
     "node_modules/debug": {
-      "version": "4.3.4",
-      "resolved": "https://registry.npmjs.org/debug/-/debug-4.3.4.tgz",
-      "integrity": "sha512-PRWFHuSU3eDtQJPvnNY7Jcket1j0t5OuOsFzPPzsekD52Zl8qUfFIPEiswXqIvHWGVHOgX+7G/vCNNhehwxfkQ==",
+      "version": "4.4.0",
+      "resolved": "https://registry.npmjs.org/debug/-/debug-4.4.0.tgz",
+      "integrity": "sha512-6WTZ/IxCY/T6BALoZHaE4ctp9xm+Z5kY/pzYaCHRFeyVhojxlrm+46y68HA6hr0TcwEssoxNiDEUJQjfPZ/RYA==",
       "dev": true,
+      "license": "MIT",
       "dependencies": {
-        "ms": "2.1.2"
+        "ms": "^2.1.3"
       },
       "engines": {
         "node": ">=6.0"
@@ -502,10 +504,11 @@
       "dev": true
     },
     "node_modules/diff": {
-      "version": "5.0.0",
-      "resolved": "https://registry.npmjs.org/diff/-/diff-5.0.0.tgz",
-      "integrity": "sha512-/VTCrvm5Z0JGty/BWHljh+BAiw3IK+2j87NGMu8Nwc/f48WoDAC395uomO9ZD117ZOBaHmkX1oyLvkVM/aIT3w==",
+      "version": "5.2.0",
+      "resolved": "https://registry.npmjs.org/diff/-/diff-5.2.0.tgz",
+      "integrity": "sha512-uIFDxqpRZGZ6ThOk84hEfqWoHx2devRFvpTZcTHur85vImfaxUbTW9Ryh4CpCuDnToOP1CEtXKIgytHBPVff5A==",
       "dev": true,
+      "license": "BSD-3-Clause",
       "engines": {
         "node": ">=0.3.1"
       }
@@ -813,9 +816,9 @@
       }
     },
     "node_modules/fill-range": {
-      "version": "7.0.1",
-      "resolved": "https://registry.npmjs.org/fill-range/-/fill-range-7.0.1.tgz",
-      "integrity": "sha512-qOo9F+dMUmC2Lcb4BbVvnKJxTPjCm+RRpe4gDuGrzkL7mEVl/djYSu2OdQ2Pa302N4oqkSg9ir6jaLWJ2USVpQ==",
+      "version": "7.1.1",
+      "resolved": "https://registry.npmjs.org/fill-range/-/fill-range-7.1.1.tgz",
+      "integrity": "sha512-YsGpe3WHLK8ZYi4tWDg2Jy3ebRz2rXowDxnld4bkQB00cc/1Zw9AWnC0i9ztDJitivtQvaI9KaLyKrc+hBW0yg==",
       "dev": true,
       "dependencies": {
         "to-regex-range": "^5.0.1"
@@ -1219,32 +1222,32 @@
       }
     },
     "node_modules/mocha": {
-      "version": "10.2.0",
-      "resolved": "https://registry.npmjs.org/mocha/-/mocha-10.2.0.tgz",
-      "integrity": "sha512-IDY7fl/BecMwFHzoqF2sg/SHHANeBoMMXFlS9r0OXKDssYE1M5O43wUY/9BVPeIvfH2zmEbBfseqN9gBQZzXkg==",
-      "dev": true,
-      "dependencies": {
-        "ansi-colors": "4.1.1",
-        "browser-stdout": "1.3.1",
-        "chokidar": "3.5.3",
-        "debug": "4.3.4",
-        "diff": "5.0.0",
-        "escape-string-regexp": "4.0.0",
-        "find-up": "5.0.0",
-        "glob": "7.2.0",
-        "he": "1.2.0",
-        "js-yaml": "4.1.0",
-        "log-symbols": "4.1.0",
-        "minimatch": "5.0.1",
-        "ms": "2.1.3",
-        "nanoid": "3.3.3",
-        "serialize-javascript": "6.0.0",
-        "strip-json-comments": "3.1.1",
-        "supports-color": "8.1.1",
-        "workerpool": "6.2.1",
-        "yargs": "16.2.0",
-        "yargs-parser": "20.2.4",
-        "yargs-unparser": "2.0.0"
+      "version": "10.8.2",
+      "resolved": "https://registry.npmjs.org/mocha/-/mocha-10.8.2.tgz",
+      "integrity": "sha512-VZlYo/WE8t1tstuRmqgeyBgCbJc/lEdopaa+axcKzTBJ+UIdlAB9XnmvTCAH4pwR4ElNInaedhEBmZD8iCSVEg==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "ansi-colors": "^4.1.3",
+        "browser-stdout": "^1.3.1",
+        "chokidar": "^3.5.3",
+        "debug": "^4.3.5",
+        "diff": "^5.2.0",
+        "escape-string-regexp": "^4.0.0",
+        "find-up": "^5.0.0",
+        "glob": "^8.1.0",
+        "he": "^1.2.0",
+        "js-yaml": "^4.1.0",
+        "log-symbols": "^4.1.0",
+        "minimatch": "^5.1.6",
+        "ms": "^2.1.3",
+        "serialize-javascript": "^6.0.2",
+        "strip-json-comments": "^3.1.1",
+        "supports-color": "^8.1.1",
+        "workerpool": "^6.5.1",
+        "yargs": "^16.2.0",
+        "yargs-parser": "^20.2.9",
+        "yargs-unparser": "^2.0.0"
       },
       "bin": {
         "_mocha": "bin/_mocha",
@@ -1252,49 +1255,45 @@
       },
       "engines": {
         "node": ">= 14.0.0"
-      },
-      "funding": {
-        "type": "opencollective",
-        "url": "https://opencollective.com/mochajs"
+      }
+    },
+    "node_modules/mocha/node_modules/brace-expansion": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-2.0.1.tgz",
+      "integrity": "sha512-XnAIvQ8eM+kC6aULx6wuQiwVsnzsi9d3WxzV3FpWTGA19F621kwdbsAcFKXgKUHZWsy+mY6iL1sHTxWEFCytDA==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "balanced-match": "^1.0.0"
       }
     },
     "node_modules/mocha/node_modules/glob": {
-      "version": "7.2.0",
-      "resolved": "https://registry.npmjs.org/glob/-/glob-7.2.0.tgz",
-      "integrity": "sha512-lmLf6gtyrPq8tTjSmrO94wBeQbFR3HbLHbuyD69wuyQkImp2hWqMGB47OX65FBkPffO641IP9jWa1z4ivqG26Q==",
+      "version": "8.1.0",
+      "resolved": "https://registry.npmjs.org/glob/-/glob-8.1.0.tgz",
+      "integrity": "sha512-r8hpEjiQEYlF2QU0df3dS+nxxSIreXQS1qRhMJM0Q5NDdR386C7jb7Hwwod8Fgiuex+k0GFjgft18yvxm5XoCQ==",
+      "deprecated": "Glob versions prior to v9 are no longer supported",
       "dev": true,
+      "license": "ISC",
       "dependencies": {
         "fs.realpath": "^1.0.0",
         "inflight": "^1.0.4",
         "inherits": "2",
-        "minimatch": "^3.0.4",
-        "once": "^1.3.0",
-        "path-is-absolute": "^1.0.0"
+        "minimatch": "^5.0.1",
+        "once": "^1.3.0"
       },
       "engines": {
-        "node": "*"
+        "node": ">=12"
       },
       "funding": {
         "url": "https://github.com/sponsors/isaacs"
       }
     },
-    "node_modules/mocha/node_modules/glob/node_modules/minimatch": {
-      "version": "3.1.2",
-      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.1.2.tgz",
-      "integrity": "sha512-J7p63hRiAjw1NDEww1W7i37+ByIrOWO5XQQAzZ3VOcL0PNybwpfmV/N05zFAzwQ9USyEcX6t3UO+K5aqBQOIHw==",
-      "dev": true,
-      "dependencies": {
-        "brace-expansion": "^1.1.7"
-      },
-      "engines": {
-        "node": "*"
-      }
-    },
     "node_modules/mocha/node_modules/minimatch": {
-      "version": "5.0.1",
-      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-5.0.1.tgz",
-      "integrity": "sha512-nLDxIFRyhDblz3qMuq+SoRZED4+miJ/G+tdDrjkkkRnjAsBexeGpgjLEQ0blJy7rHhR2b93rhQY4SvyWu9v03g==",
+      "version": "5.1.6",
+      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-5.1.6.tgz",
+      "integrity": "sha512-lKwV/1brpG6mBUFHtb7NUmtABCb2WZZmm2wNiOA5hAb8VdCS4B3dtMWyvcoViccwAW/COERjXLt0zP1zXUN26g==",
       "dev": true,
+      "license": "ISC",
       "dependencies": {
         "brace-expansion": "^2.0.1"
       },
@@ -1302,21 +1301,6 @@
         "node": ">=10"
       }
     },
-    "node_modules/mocha/node_modules/minimatch/node_modules/brace-expansion": {
-      "version": "2.0.1",
-      "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-2.0.1.tgz",
-      "integrity": "sha512-XnAIvQ8eM+kC6aULx6wuQiwVsnzsi9d3WxzV3FpWTGA19F621kwdbsAcFKXgKUHZWsy+mY6iL1sHTxWEFCytDA==",
-      "dev": true,
-      "dependencies": {
-        "balanced-match": "^1.0.0"
-      }
-    },
-    "node_modules/mocha/node_modules/ms": {
-      "version": "2.1.3",
-      "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.3.tgz",
-      "integrity": "sha512-6FlzubTLZG3J2a/NVCAleEhjzq5oxgHyaCU9yYXvcLsvoVaHJq/s5xXI6/XXP6tz7R9xAOtHnSO/tXtF3WRTlA==",
-      "dev": true
-    },
     "node_modules/mocha/node_modules/supports-color": {
       "version": "8.1.1",
       "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-8.1.1.tgz",
@@ -1333,22 +1317,11 @@
       }
     },
     "node_modules/ms": {
-      "version": "2.1.2",
-      "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
-      "integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w==",
-      "dev": true
-    },
-    "node_modules/nanoid": {
-      "version": "3.3.3",
-      "resolved": "https://registry.npmjs.org/nanoid/-/nanoid-3.3.3.tgz",
-      "integrity": "sha512-p1sjXuopFs0xg+fPASzQ28agW1oHD7xDsd9Xkf3T15H3c/cifrFHVwrh74PdoklAPi+i7MdRsE47vm2r6JoB+w==",
+      "version": "2.1.3",
+      "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.3.tgz",
+      "integrity": "sha512-6FlzubTLZG3J2a/NVCAleEhjzq5oxgHyaCU9yYXvcLsvoVaHJq/s5xXI6/XXP6tz7R9xAOtHnSO/tXtF3WRTlA==",
       "dev": true,
-      "bin": {
-        "nanoid": "bin/nanoid.cjs"
-      },
-      "engines": {
-        "node": "^10 || ^12 || ^13.7 || ^14 || >=15.0.1"
-      }
+      "license": "MIT"
     },
     "node_modules/natural-compare": {
       "version": "1.4.0",
@@ -1555,6 +1528,7 @@
       "resolved": "https://registry.npmjs.org/randombytes/-/randombytes-2.1.0.tgz",
       "integrity": "sha512-vYl3iOX+4CKUWuxGi9Ukhie6fsqXqS9FE2Zaic4tNFD2N2QQaXOMFbuKK4QmDHC0JO6B1Zp41J0LpT0oR68amQ==",
       "dev": true,
+      "license": "MIT",
       "dependencies": {
         "safe-buffer": "^5.1.0"
       }
@@ -1675,13 +1649,15 @@
           "type": "consulting",
           "url": "https://feross.org/support"
         }
-      ]
+      ],
+      "license": "MIT"
     },
     "node_modules/serialize-javascript": {
-      "version": "6.0.0",
-      "resolved": "https://registry.npmjs.org/serialize-javascript/-/serialize-javascript-6.0.0.tgz",
-      "integrity": "sha512-Qr3TosvguFt8ePWqsvRfrKyQXIiW+nGbYpy8XK24NQHE83caxWt+mIymTT19DGFbNWNLfEwsrkSmN64lVWB9ag==",
+      "version": "6.0.2",
+      "resolved": "https://registry.npmjs.org/serialize-javascript/-/serialize-javascript-6.0.2.tgz",
+      "integrity": "sha512-Saa1xPByTTq2gdeFZYLLo+RFE35NHZkAbqZeWNd3BpzppeVisAqpDjcp8dyf6uIvEqJRd46jemmyA4iFIeVk8g==",
       "dev": true,
+      "license": "BSD-3-Clause",
       "dependencies": {
         "randombytes": "^2.1.0"
       }
@@ -1832,19 +1808,20 @@
       }
     },
     "node_modules/word-wrap": {
-      "version": "1.2.3",
-      "resolved": "https://registry.npmjs.org/word-wrap/-/word-wrap-1.2.3.tgz",
-      "integrity": "sha512-Hz/mrNwitNRh/HUAtM/VT/5VH+ygD6DV7mYKZAtHOrbs8U7lvPS6xf7EJKMF0uW1KJCl0H701g3ZGus+muE5vQ==",
+      "version": "1.2.4",
+      "resolved": "https://registry.npmjs.org/word-wrap/-/word-wrap-1.2.4.tgz",
+      "integrity": "sha512-2V81OA4ugVo5pRo46hAoD2ivUJx8jXmWXfUkY4KFNw0hEptvN0QfH3K4nHiwzGeKl5rFKedV48QVoqYavy4YpA==",
       "dev": true,
       "engines": {
         "node": ">=0.10.0"
       }
     },
     "node_modules/workerpool": {
-      "version": "6.2.1",
-      "resolved": "https://registry.npmjs.org/workerpool/-/workerpool-6.2.1.tgz",
-      "integrity": "sha512-ILEIE97kDZvF9Wb9f6h5aXK4swSlKGUcOEGiIYb2OOu/IrDU9iwj0fD//SsA6E5ibwJxpEvhullJY4Sl4GcpAw==",
-      "dev": true
+      "version": "6.5.1",
+      "resolved": "https://registry.npmjs.org/workerpool/-/workerpool-6.5.1.tgz",
+      "integrity": "sha512-Fs4dNYcsdpYSAfVxhnl1L5zTksjvOJxtC5hzMNl+1t9B8hTJTdKDyZ5ju7ztgPy+ft9tBFXoOlDNiOT9WUXZlA==",
+      "dev": true,
+      "license": "Apache-2.0"
     },
     "node_modules/wrap-ansi": {
       "version": "7.0.0",
@@ -1897,10 +1874,11 @@
       }
     },
     "node_modules/yargs-parser": {
-      "version": "20.2.4",
-      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-20.2.4.tgz",
-      "integrity": "sha512-WOkpgNhPTlE73h4VFAFsOnomJVaovO8VqLDzy5saChRBFQFBoMYirowyW+Q9HB4HFF4Z7VZTiG3iSzJJA29yRA==",
+      "version": "20.2.9",
+      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-20.2.9.tgz",
+      "integrity": "sha512-y11nGElTIV+CT3Zv9t7VKl+Q3hTQoT9a1Qzezhhl6Rp21gJ/IVTW7Z3y9EWXhuUBC2Shnf+DX0antecpAwSP8w==",
       "dev": true,
+      "license": "ISC",
       "engines": {
         "node": ">=10"
       }
@@ -2045,9 +2023,9 @@
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     },
     "ansi-colors": {
-      "version": "4.1.1",
-      "resolved": "https://registry.npmjs.org/ansi-colors/-/ansi-colors-4.1.1.tgz",
-      "integrity": "sha512-JoX0apGbHaUJBNl6yF+p6JAFYZ666/hhCGKN5t9QFjbJQKUU/g8MNbFDbvfrgKXvI1QpZplPOnwIo99lX/AAmA==",
+      "version": "4.1.3",
+      "resolved": "https://registry.npmjs.org/ansi-colors/-/ansi-colors-4.1.3.tgz",
+      "integrity": "sha512-/6w/C21Pm1A7aZitlI5Ni/2J6FFQN8i1Cvz3kHABAAbw93v/NlvKdVOqz7CCWz/3iv/JplRSEEZ83XION15ovw==",
       "dev": true
     },
     "ansi-regex": {
@@ -2110,12 +2088,12 @@
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     "braces": {
-      "version": "3.0.2",
-      "resolved": "https://registry.npmjs.org/braces/-/braces-3.0.2.tgz",
-      "integrity": "sha512-b8um+L1RzM3WDSzvhm6gIz1yfTbBt6YTlcEKAvsmqCZZFw46z626lVj9j1yEPW33H5H+lBQpZMP1k8l+78Ha0A==",
+      "version": "3.0.3",
+      "resolved": "https://registry.npmjs.org/braces/-/braces-3.0.3.tgz",
+      "integrity": "sha512-yQbXgO/OSZVD2IsiLlro+7Hf6Q18EJrKSEsdoMzKePKXct3gvD8oLcOQdIzGupr5Fj+EDe8gO/lxc1BzfMpxvA==",
       "dev": true,
       "requires": {
-        "fill-range": "^7.0.1"
+        "fill-range": "^7.1.1"
       }
     },
     "browser-stdout": {
@@ -2252,12 +2230,12 @@
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-      "version": "4.3.4",
-      "resolved": "https://registry.npmjs.org/debug/-/debug-4.3.4.tgz",
-      "integrity": "sha512-PRWFHuSU3eDtQJPvnNY7Jcket1j0t5OuOsFzPPzsekD52Zl8qUfFIPEiswXqIvHWGVHOgX+7G/vCNNhehwxfkQ==",
+      "version": "4.4.0",
+      "resolved": "https://registry.npmjs.org/debug/-/debug-4.4.0.tgz",
+      "integrity": "sha512-6WTZ/IxCY/T6BALoZHaE4ctp9xm+Z5kY/pzYaCHRFeyVhojxlrm+46y68HA6hr0TcwEssoxNiDEUJQjfPZ/RYA==",
       "dev": true,
       "requires": {
-        "ms": "2.1.2"
+        "ms": "^2.1.3"
       }
     },
     "decamelize": {
@@ -2282,9 +2260,9 @@
       "dev": true
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-      "version": "5.0.0",
-      "resolved": "https://registry.npmjs.org/diff/-/diff-5.0.0.tgz",
-      "integrity": "sha512-/VTCrvm5Z0JGty/BWHljh+BAiw3IK+2j87NGMu8Nwc/f48WoDAC395uomO9ZD117ZOBaHmkX1oyLvkVM/aIT3w==",
+      "version": "5.2.0",
+      "resolved": "https://registry.npmjs.org/diff/-/diff-5.2.0.tgz",
+      "integrity": "sha512-uIFDxqpRZGZ6ThOk84hEfqWoHx2devRFvpTZcTHur85vImfaxUbTW9Ryh4CpCuDnToOP1CEtXKIgytHBPVff5A==",
       "dev": true
     },
     "doctrine": {
@@ -2513,9 +2491,9 @@
       }
     },
     "fill-range": {
-      "version": "7.0.1",
-      "resolved": "https://registry.npmjs.org/fill-range/-/fill-range-7.0.1.tgz",
-      "integrity": "sha512-qOo9F+dMUmC2Lcb4BbVvnKJxTPjCm+RRpe4gDuGrzkL7mEVl/djYSu2OdQ2Pa302N4oqkSg9ir6jaLWJ2USVpQ==",
+      "version": "7.1.1",
+      "resolved": "https://registry.npmjs.org/fill-range/-/fill-range-7.1.1.tgz",
+      "integrity": "sha512-YsGpe3WHLK8ZYi4tWDg2Jy3ebRz2rXowDxnld4bkQB00cc/1Zw9AWnC0i9ztDJitivtQvaI9KaLyKrc+hBW0yg==",
       "dev": true,
       "requires": {
         "to-regex-range": "^5.0.1"
@@ -2806,85 +2784,64 @@
       }
     },
     "mocha": {
-      "version": "10.2.0",
-      "resolved": "https://registry.npmjs.org/mocha/-/mocha-10.2.0.tgz",
-      "integrity": "sha512-IDY7fl/BecMwFHzoqF2sg/SHHANeBoMMXFlS9r0OXKDssYE1M5O43wUY/9BVPeIvfH2zmEbBfseqN9gBQZzXkg==",
-      "dev": true,
-      "requires": {
-        "ansi-colors": "4.1.1",
-        "browser-stdout": "1.3.1",
-        "chokidar": "3.5.3",
-        "debug": "4.3.4",
-        "diff": "5.0.0",
-        "escape-string-regexp": "4.0.0",
-        "find-up": "5.0.0",
-        "glob": "7.2.0",
-        "he": "1.2.0",
-        "js-yaml": "4.1.0",
-        "log-symbols": "4.1.0",
-        "minimatch": "5.0.1",
-        "ms": "2.1.3",
-        "nanoid": "3.3.3",
-        "serialize-javascript": "6.0.0",
-        "strip-json-comments": "3.1.1",
-        "supports-color": "8.1.1",
-        "workerpool": "6.2.1",
-        "yargs": "16.2.0",
-        "yargs-parser": "20.2.4",
-        "yargs-unparser": "2.0.0"
-      },
-      "dependencies": {
+      "version": "10.8.2",
+      "resolved": "https://registry.npmjs.org/mocha/-/mocha-10.8.2.tgz",
+      "integrity": "sha512-VZlYo/WE8t1tstuRmqgeyBgCbJc/lEdopaa+axcKzTBJ+UIdlAB9XnmvTCAH4pwR4ElNInaedhEBmZD8iCSVEg==",
+      "dev": true,
+      "requires": {
+        "ansi-colors": "^4.1.3",
+        "browser-stdout": "^1.3.1",
+        "chokidar": "^3.5.3",
+        "debug": "^4.3.5",
+        "diff": "^5.2.0",
+        "escape-string-regexp": "^4.0.0",
+        "find-up": "^5.0.0",
+        "glob": "^8.1.0",
+        "he": "^1.2.0",
+        "js-yaml": "^4.1.0",
+        "log-symbols": "^4.1.0",
+        "minimatch": "^5.1.6",
+        "ms": "^2.1.3",
+        "serialize-javascript": "^6.0.2",
+        "strip-json-comments": "^3.1.1",
+        "supports-color": "^8.1.1",
+        "workerpool": "^6.5.1",
+        "yargs": "^16.2.0",
+        "yargs-parser": "^20.2.9",
+        "yargs-unparser": "^2.0.0"
+      },
+      "dependencies": {
+        "brace-expansion": {
+          "version": "2.0.1",
+          "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-2.0.1.tgz",
+          "integrity": "sha512-XnAIvQ8eM+kC6aULx6wuQiwVsnzsi9d3WxzV3FpWTGA19F621kwdbsAcFKXgKUHZWsy+mY6iL1sHTxWEFCytDA==",
+          "dev": true,
+          "requires": {
+            "balanced-match": "^1.0.0"
+          }
+        },
         "glob": {
-          "version": "7.2.0",
-          "resolved": "https://registry.npmjs.org/glob/-/glob-7.2.0.tgz",
-          "integrity": "sha512-lmLf6gtyrPq8tTjSmrO94wBeQbFR3HbLHbuyD69wuyQkImp2hWqMGB47OX65FBkPffO641IP9jWa1z4ivqG26Q==",
+          "version": "8.1.0",
+          "resolved": "https://registry.npmjs.org/glob/-/glob-8.1.0.tgz",
+          "integrity": "sha512-r8hpEjiQEYlF2QU0df3dS+nxxSIreXQS1qRhMJM0Q5NDdR386C7jb7Hwwod8Fgiuex+k0GFjgft18yvxm5XoCQ==",
           "dev": true,
           "requires": {
             "fs.realpath": "^1.0.0",
             "inflight": "^1.0.4",
             "inherits": "2",
-            "minimatch": "^3.0.4",
-            "once": "^1.3.0",
-            "path-is-absolute": "^1.0.0"
-          },
-          "dependencies": {
-            "minimatch": {
-              "version": "3.1.2",
-              "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.1.2.tgz",
-              "integrity": "sha512-J7p63hRiAjw1NDEww1W7i37+ByIrOWO5XQQAzZ3VOcL0PNybwpfmV/N05zFAzwQ9USyEcX6t3UO+K5aqBQOIHw==",
-              "dev": true,
-              "requires": {
-                "brace-expansion": "^1.1.7"
-              }
-            }
+            "minimatch": "^5.0.1",
+            "once": "^1.3.0"
           }
         },
         "minimatch": {
-          "version": "5.0.1",
-          "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-5.0.1.tgz",
-          "integrity": "sha512-nLDxIFRyhDblz3qMuq+SoRZED4+miJ/G+tdDrjkkkRnjAsBexeGpgjLEQ0blJy7rHhR2b93rhQY4SvyWu9v03g==",
+          "version": "5.1.6",
+          "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-5.1.6.tgz",
+          "integrity": "sha512-lKwV/1brpG6mBUFHtb7NUmtABCb2WZZmm2wNiOA5hAb8VdCS4B3dtMWyvcoViccwAW/COERjXLt0zP1zXUN26g==",
           "dev": true,
           "requires": {
             "brace-expansion": "^2.0.1"
-          },
-          "dependencies": {
-            "brace-expansion": {
-              "version": "2.0.1",
-              "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-2.0.1.tgz",
-              "integrity": "sha512-XnAIvQ8eM+kC6aULx6wuQiwVsnzsi9d3WxzV3FpWTGA19F621kwdbsAcFKXgKUHZWsy+mY6iL1sHTxWEFCytDA==",
-              "dev": true,
-              "requires": {
-                "balanced-match": "^1.0.0"
-              }
-            }
           }
         },
-        "ms": {
-          "version": "2.1.3",
-          "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.3.tgz",
-          "integrity": "sha512-6FlzubTLZG3J2a/NVCAleEhjzq5oxgHyaCU9yYXvcLsvoVaHJq/s5xXI6/XXP6tz7R9xAOtHnSO/tXtF3WRTlA==",
-          "dev": true
-        },
         "supports-color": {
           "version": "8.1.1",
           "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-8.1.1.tgz",
@@ -2897,15 +2854,9 @@
       }
     },
     "ms": {
-      "version": "2.1.2",
-      "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
-      "integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w==",
-      "dev": true
-    },
-    "nanoid": {
-      "version": "3.3.3",
-      "resolved": "https://registry.npmjs.org/nanoid/-/nanoid-3.3.3.tgz",
-      "integrity": "sha512-p1sjXuopFs0xg+fPASzQ28agW1oHD7xDsd9Xkf3T15H3c/cifrFHVwrh74PdoklAPi+i7MdRsE47vm2r6JoB+w==",
+      "version": "2.1.3",
+      "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.3.tgz",
+      "integrity": "sha512-6FlzubTLZG3J2a/NVCAleEhjzq5oxgHyaCU9yYXvcLsvoVaHJq/s5xXI6/XXP6tz7R9xAOtHnSO/tXtF3WRTlA==",
       "dev": true
     },
     "natural-compare": {
@@ -3109,9 +3060,9 @@
       "dev": true
     },
     "serialize-javascript": {
-      "version": "6.0.0",
-      "resolved": "https://registry.npmjs.org/serialize-javascript/-/serialize-javascript-6.0.0.tgz",
-      "integrity": "sha512-Qr3TosvguFt8ePWqsvRfrKyQXIiW+nGbYpy8XK24NQHE83caxWt+mIymTT19DGFbNWNLfEwsrkSmN64lVWB9ag==",
+      "version": "6.0.2",
+      "resolved": "https://registry.npmjs.org/serialize-javascript/-/serialize-javascript-6.0.2.tgz",
+      "integrity": "sha512-Saa1xPByTTq2gdeFZYLLo+RFE35NHZkAbqZeWNd3BpzppeVisAqpDjcp8dyf6uIvEqJRd46jemmyA4iFIeVk8g==",
       "dev": true,
       "requires": {
         "randombytes": "^2.1.0"
@@ -3221,15 +3172,15 @@
       }
     },
     "word-wrap": {
-      "version": "1.2.3",
-      "resolved": "https://registry.npmjs.org/word-wrap/-/word-wrap-1.2.3.tgz",
-      "integrity": "sha512-Hz/mrNwitNRh/HUAtM/VT/5VH+ygD6DV7mYKZAtHOrbs8U7lvPS6xf7EJKMF0uW1KJCl0H701g3ZGus+muE5vQ==",
+      "version": "1.2.4",
+      "resolved": "https://registry.npmjs.org/word-wrap/-/word-wrap-1.2.4.tgz",
+      "integrity": "sha512-2V81OA4ugVo5pRo46hAoD2ivUJx8jXmWXfUkY4KFNw0hEptvN0QfH3K4nHiwzGeKl5rFKedV48QVoqYavy4YpA==",
       "dev": true
     },
     "workerpool": {
-      "version": "6.2.1",
-      "resolved": "https://registry.npmjs.org/workerpool/-/workerpool-6.2.1.tgz",
-      "integrity": "sha512-ILEIE97kDZvF9Wb9f6h5aXK4swSlKGUcOEGiIYb2OOu/IrDU9iwj0fD//SsA6E5ibwJxpEvhullJY4Sl4GcpAw==",
+      "version": "6.5.1",
+      "resolved": "https://registry.npmjs.org/workerpool/-/workerpool-6.5.1.tgz",
+      "integrity": "sha512-Fs4dNYcsdpYSAfVxhnl1L5zTksjvOJxtC5hzMNl+1t9B8hTJTdKDyZ5ju7ztgPy+ft9tBFXoOlDNiOT9WUXZlA==",
       "dev": true
     },
     "wrap-ansi": {
@@ -3271,9 +3222,9 @@
       }
     },
     "yargs-parser": {
-      "version": "20.2.4",
-      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-20.2.4.tgz",
-      "integrity": "sha512-WOkpgNhPTlE73h4VFAFsOnomJVaovO8VqLDzy5saChRBFQFBoMYirowyW+Q9HB4HFF4Z7VZTiG3iSzJJA29yRA==",
+      "version": "20.2.9",
+      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-20.2.9.tgz",
+      "integrity": "sha512-y11nGElTIV+CT3Zv9t7VKl+Q3hTQoT9a1Qzezhhl6Rp21gJ/IVTW7Z3y9EWXhuUBC2Shnf+DX0antecpAwSP8w==",
       "dev": true
     },
     "yargs-unparser": {
diff --git a/sample-data/employees.csv b/sample-data/employees.csv
index 6745452..2ced17e 100644
--- a/sample-data/employees.csv
+++ b/sample-data/employees.csv
@@ -1,11 +1,11 @@
 Employee ID Number,Last Name,First Name,Ethnicity,Gender,Date of Birth,Active,Administrative,Department,Location
-100028414,Smith,Nancy,White,F,4/11/1985,TRUE,FALSE,Human Resources,Baltimore
-100048265,Harris,Bernice,Black,F,6/4/1968,TRUE,FALSE,Research & Development,Chicago
-100042175,Rodriguez,Alice,Hispanic,F,3/23/1956,TRUE,TRUE,Manufacturing,Chicago
-100021733,Hockett,Heriberto,Hispanic,M,9/20/1973,FALSE,FALSE,Packaging,Baltimore
-100032005,Davis,Nicole,Multi-Racial,F,7/11/1986,TRUE,FALSE,Packaging,Chicago
-100048269,Hester,Lidia,Black,F,8/8/1979,TRUE,FALSE,Human Resources,Chicago
-100037893,Johnston,Derrick,White,M,8/13/1972,FALSE,FALSE,Research & Development,Baltimore
-100048423,Hamm,Matthew,Black,M,4/14/1965,TRUE,TRUE,Human Resources,Baltimore
-100046753,Manson,Erika,Multi-Racial,F,10/13/1991,TRUE,FALSE,Research & Development,Chicago
-100042913,Stutz,Delores,Black,F,3/15/1985,TRUE,FALSE,Human Resources,Chicago
+100028414,Smith,Nancy,White,F,4/11/1985,true,false,Human Resources,Baltimore
+100048265,Harris,Bernice,Black,F,6/4/1968,true,false,Research & Development,Chicago
+100042175,Rodriguez,Alice,Hispanic,F,3/23/1956,true,true,Manufacturing,Chicago
+100021733,Hockett,Heriberto,Hispanic,M,9/20/1973,false,false,Packaging,Baltimore
+100032005,Davis,Nicole,Multi-Racial,F,7/11/1986,true,false,Packaging,Chicago
+100048269,Hester,Lidia,Black,F,8/8/1979,true,false,Human Resources,Chicago
+100037893,Johnston,Derrick,White,M,8/13/1972,false,false,Research & Development,Baltimore
+100048423,Hamm,Matthew,Black,M,4/14/1965,true,true,Human Resources,Baltimore
+100046753,Manson,Erika,Multi-Racial,F,10/13/1991,true,false,Research & Development,Chicago
+100042913,Stutz,Delores,Black,F,3/15/1985,true,false,Human Resources,Chicago
diff --git a/test/validate.test.js b/test/validate.test.js
index 8c0d1e2..a4aafb1 100644
--- a/test/validate.test.js
+++ b/test/validate.test.js
@@ -34,6 +34,21 @@ describe("validate", () => {
     expect(valid).to.equal(true);
   });
 
+  it("validates a valid CSV string with a boolean", async () => {
+    const parsed = await parseCsv("name,active\nJohn,true");
+
+    const rules = {
+      properties: {
+        active: {
+          type: "boolean",
+        },
+      },
+    };
+
+    const valid = await validate(parsed, rules);
+    expect(valid).to.equal(true);
+  });
+
   it('validates rules with the optional type:"object" property', async () => {
     const parsed = await parseCsv("name,age\nJohn,30");