diff --git a/package-lock.json b/package-lock.json
index 87175e3..21497a8 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "line-maker",
-  "version": "0.0.1",
+  "version": "0.0.0-development",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -55,6 +55,169 @@
         }
       }
     },
+    "@commitlint/execute-rule": {
+      "version": "8.1.0",
+      "resolved": "https://registry.npmjs.org/@commitlint/execute-rule/-/execute-rule-8.1.0.tgz",
+      "integrity": "sha512-+vpH3RFuO6ypuCqhP2rSqTjFTQ7ClzXtUvXphpROv9v9+7zH4L+Ex+wZLVkL8Xj2cxefSLn/5Kcqa9XyJTn3kg==",
+      "dev": true,
+      "optional": true
+    },
+    "@commitlint/load": {
+      "version": "8.1.0",
+      "resolved": "https://registry.npmjs.org/@commitlint/load/-/load-8.1.0.tgz",
+      "integrity": "sha512-ra02Dvmd7Gp1+uFLzTY3yGOpHjPzl5T9wYg/xrtPJNiOWXvQ0Mw7THw+ucd1M5iLUWjvdavv2N87YDRc428wHg==",
+      "dev": true,
+      "optional": true,
+      "requires": {
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+        "@commitlint/resolve-extends": "^8.1.0",
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+        "cosmiconfig": "^5.2.0",
+        "lodash": "4.17.14",
+        "resolve-from": "^5.0.0"
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+          "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-3.2.1.tgz",
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+          "dev": true,
+          "optional": true,
+          "requires": {
+            "color-convert": "^1.9.0"
+          }
+        },
+        "chalk": {
+          "version": "2.4.2",
+          "resolved": "https://registry.npmjs.org/chalk/-/chalk-2.4.2.tgz",
+          "integrity": "sha512-Mti+f9lpJNcwF4tWV8/OrTTtF1gZi+f8FqlyAdouralcFWFQWF2+NgCHShjkCb+IFBLq9buZwE1xckQU4peSuQ==",
+          "dev": true,
+          "optional": true,
+          "requires": {
+            "ansi-styles": "^3.2.1",
+            "escape-string-regexp": "^1.0.5",
+            "supports-color": "^5.3.0"
+          }
+        },
+        "cosmiconfig": {
+          "version": "5.2.1",
+          "resolved": "https://registry.npmjs.org/cosmiconfig/-/cosmiconfig-5.2.1.tgz",
+          "integrity": "sha512-H65gsXo1SKjf8zmrJ67eJk8aIRKV5ff2D4uKZIBZShbhGSpEmsQOPW/SKMKYhSTrqR7ufy6RP69rPogdaPh/kA==",
+          "dev": true,
+          "optional": true,
+          "requires": {
+            "import-fresh": "^2.0.0",
+            "is-directory": "^0.3.1",
+            "js-yaml": "^3.13.1",
+            "parse-json": "^4.0.0"
+          }
+        },
+        "import-fresh": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/import-fresh/-/import-fresh-2.0.0.tgz",
+          "integrity": "sha1-2BNVwVYS04bGH53dOSLUMEgipUY=",
+          "dev": true,
+          "optional": true,
+          "requires": {
+            "caller-path": "^2.0.0",
+            "resolve-from": "^3.0.0"
+          },
+          "dependencies": {
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+              "resolved": "https://registry.npmjs.org/resolve-from/-/resolve-from-3.0.0.tgz",
+              "integrity": "sha1-six699nWiBvItuZTM17rywoYh0g=",
+              "dev": true,
+              "optional": true
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+        "js-yaml": {
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+          "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-3.13.1.tgz",
+          "integrity": "sha512-YfbcO7jXDdyj0DGxYVSlSeQNHbD7XPWvrVWeVUujrQEoZzWJIRrCPoyk6kL6IAjAG2IolMK4T0hNUe0HOUs5Jw==",
+          "dev": true,
+          "optional": true,
+          "requires": {
+            "argparse": "^1.0.7",
+            "esprima": "^4.0.0"
+          }
+        },
+        "lodash": {
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+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.14.tgz",
+          "integrity": "sha512-mmKYbW3GLuJeX+iGP+Y7Gp1AiGHGbXHCOh/jZmrawMmsE7MS4znI3RL2FsjbqOyMayHInjOeykW7PEajUk1/xw==",
+          "dev": true,
+          "optional": true
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+        "parse-json": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/parse-json/-/parse-json-4.0.0.tgz",
+          "integrity": "sha1-vjX1Qlvh9/bHRxhPmKeIy5lHfuA=",
+          "dev": true,
+          "optional": true,
+          "requires": {
+            "error-ex": "^1.3.1",
+            "json-parse-better-errors": "^1.0.1"
+          }
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+          "resolved": "https://registry.npmjs.org/resolve-from/-/resolve-from-5.0.0.tgz",
+          "integrity": "sha512-qYg9KP24dD5qka9J47d0aVky0N+b4fTU89LN9iDnjB5waksiC49rvMB0PrUJQGoTmH50XPiqOvAjDfaijGxYZw==",
+          "dev": true,
+          "optional": true
+        },
+        "supports-color": {
+          "version": "5.5.0",
+          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-5.5.0.tgz",
+          "integrity": "sha512-QjVjwdXIt408MIiAqCX4oUKsgU2EqAGzs2Ppkm4aQYbjm+ZEWEcW4SfFNTr4uMNZma0ey4f5lgLrkB0aX0QMow==",
+          "dev": true,
+          "optional": true,
+          "requires": {
+            "has-flag": "^3.0.0"
+          }
+        }
+      }
+    },
+    "@commitlint/resolve-extends": {
+      "version": "8.1.0",
+      "resolved": "https://registry.npmjs.org/@commitlint/resolve-extends/-/resolve-extends-8.1.0.tgz",
+      "integrity": "sha512-r/y+CeKW72Oa9BUctS1+I/MFCDiI3lfhwfQ65Tpfn6eZ4CuBYKzrCRi++GTHeAFKE3y8q1epJq5Rl/1GBejtBw==",
+      "dev": true,
+      "optional": true,
+      "requires": {
+        "@types/node": "^12.0.2",
+        "import-fresh": "^3.0.0",
+        "lodash": "4.17.14",
+        "resolve-from": "^5.0.0",
+        "resolve-global": "^1.0.0"
+      },
+      "dependencies": {
+        "@types/node": {
+          "version": "12.6.8",
+          "resolved": "https://registry.npmjs.org/@types/node/-/node-12.6.8.tgz",
+          "integrity": "sha512-aX+gFgA5GHcDi89KG5keey2zf0WfZk/HAQotEamsK2kbey+8yGKcson0hbK8E+v0NArlCJQCqMP161YhV6ZXLg==",
+          "dev": true,
+          "optional": true
+        },
+        "lodash": {
+          "version": "4.17.14",
+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.14.tgz",
+          "integrity": "sha512-mmKYbW3GLuJeX+iGP+Y7Gp1AiGHGbXHCOh/jZmrawMmsE7MS4znI3RL2FsjbqOyMayHInjOeykW7PEajUk1/xw==",
+          "dev": true,
+          "optional": true
+        },
+        "resolve-from": {
+          "version": "5.0.0",
+          "resolved": "https://registry.npmjs.org/resolve-from/-/resolve-from-5.0.0.tgz",
+          "integrity": "sha512-qYg9KP24dD5qka9J47d0aVky0N+b4fTU89LN9iDnjB5waksiC49rvMB0PrUJQGoTmH50XPiqOvAjDfaijGxYZw==",
+          "dev": true,
+          "optional": true
+        }
+      }
+    },
     "@mrmlnc/readdir-enhanced": {
       "version": "2.2.1",
       "resolved": "https://registry.npmjs.org/@mrmlnc/readdir-enhanced/-/readdir-enhanced-2.2.1.tgz",
@@ -510,6 +673,7 @@
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       "integrity": "sha1-DNkKVhCT810KmSVsIrcGlDP60Rc=",
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+      "optional": true,
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@@ -2107,6 +2271,26 @@
       "integrity": "sha1-JtII6onje1y95gJQoV8DHBak1ms=",
       "dev": true
     },
+    "caller-callsite": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/caller-callsite/-/caller-callsite-2.0.0.tgz",
+      "integrity": "sha1-hH4PzgoiN1CpoCfFSzNzGtMVQTQ=",
+      "dev": true,
+      "optional": true,
+      "requires": {
+        "callsites": "^2.0.0"
+      }
+    },
+    "caller-path": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/caller-path/-/caller-path-2.0.0.tgz",
+      "integrity": "sha1-Ro+DBE42mrIBD6xfBs7uFbsssfQ=",
+      "dev": true,
+      "optional": true,
+      "requires": {
+        "caller-callsite": "^2.0.0"
+      }
+    },
     "callsites": {
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       "resolved": "https://registry.npmjs.org/callsites/-/callsites-2.0.0.tgz",
@@ -2761,16 +2945,49 @@
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-      "resolved": "https://registry.npmjs.org/cz-conventional-changelog/-/cz-conventional-changelog-2.1.0.tgz",
-      "integrity": "sha1-L0vHOQ4yROTfKT5ro1Hkx0Cnx2Q=",
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/cz-conventional-changelog/-/cz-conventional-changelog-3.0.0.tgz",
+      "integrity": "sha512-d6yoDVs00HLXhq1EwRNLk1jUb+0TkTW4mGP7hHMQjDnkNFpLmJdte2Hqd4K34yYt3QZGQ9WPKW2e5tjMxvFsLA==",
       "dev": true,
       "requires": {
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-        "lodash.map": "4.6.0",
-        "longest": "1.0.1",
-        "right-pad": "1.0.1",
-        "word-wrap": "1.2.3"
+        "@commitlint/load": ">6.1.1",
+        "chalk": "^2.4.1",
+        "conventional-commit-types": "^2.0.0",
+        "lodash.map": "^4.5.1",
+        "longest": "^1.0.1",
+        "right-pad": "^1.0.1",
+        "word-wrap": "^1.0.3"
+      },
+      "dependencies": {
+        "ansi-styles": {
+          "version": "3.2.1",
+          "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-3.2.1.tgz",
+          "integrity": "sha512-VT0ZI6kZRdTh8YyJw3SMbYm/u+NqfsAxEpWO0Pf9sq8/e94WxxOpPKx9FR1FlyCtOVDNOQ+8ntlqFxiRc+r5qA==",
+          "dev": true,
+          "requires": {
+            "color-convert": "^1.9.0"
+          }
+        },
+        "chalk": {
+          "version": "2.4.2",
+          "resolved": "https://registry.npmjs.org/chalk/-/chalk-2.4.2.tgz",
+          "integrity": "sha512-Mti+f9lpJNcwF4tWV8/OrTTtF1gZi+f8FqlyAdouralcFWFQWF2+NgCHShjkCb+IFBLq9buZwE1xckQU4peSuQ==",
+          "dev": true,
+          "requires": {
+            "ansi-styles": "^3.2.1",
+            "escape-string-regexp": "^1.0.5",
+            "supports-color": "^5.3.0"
+          }
+        },
+        "supports-color": {
+          "version": "5.5.0",
+          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-5.5.0.tgz",
+          "integrity": "sha512-QjVjwdXIt408MIiAqCX4oUKsgU2EqAGzs2Ppkm4aQYbjm+ZEWEcW4SfFNTr4uMNZma0ey4f5lgLrkB0aX0QMow==",
+          "dev": true,
+          "requires": {
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+          }
+        }
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@@ -3991,7 +4208,8 @@
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@@ -4015,13 +4233,15 @@
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-          "dev": true
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+          "optional": true,
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@@ -4038,19 +4258,22 @@
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-          "dev": true
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           "integrity": "sha1-754xOG8DGn8NZDr4L95QxFfvAMs=",
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@@ -4219,13 +4445,15 @@
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       "dev": true
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+      "resolved": "https://registry.npmjs.org/import-fresh/-/import-fresh-3.1.0.tgz",
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+      "dev": true,
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+        "resolve-from": "^4.0.0"
+      },
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@@ -9636,6 +9892,25 @@
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+      "resolved": "https://registry.npmjs.org/parent-module/-/parent-module-1.0.1.tgz",
+      "integrity": "sha512-GQ2EWRpQV8/o+Aw8YqtfZZPfNRWZYkbidE9k5rpl/hC3vtHHBfGm2Ifi6qWV+coDGkrUKZAxE3Lot5kcsRlh+g==",
+      "dev": true,
+      "optional": true,
+      "requires": {
+        "callsites": "^3.0.0"
+      },
+      "dependencies": {
+        "callsites": {
+          "version": "3.1.0",
+          "resolved": "https://registry.npmjs.org/callsites/-/callsites-3.1.0.tgz",
+          "integrity": "sha512-P8BjAsXvZS+VIDUI11hHCQEv74YT67YUi5JJFNWIqL235sBmjX4+qx9Muvls5ivyNENctx46xQLQ3aTuE7ssaQ==",
+          "dev": true,
+          "optional": true
+        }
+      }
+    },
     "parse-domain": {
       "version": "2.1.2",
       "resolved": "https://registry.npmjs.org/parse-domain/-/parse-domain-2.1.2.tgz",
@@ -10471,6 +10746,16 @@
       "integrity": "sha1-six699nWiBvItuZTM17rywoYh0g=",
       "dev": true
     },
+    "resolve-global": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/resolve-global/-/resolve-global-1.0.0.tgz",
+      "integrity": "sha512-zFa12V4OLtT5XUX/Q4VLvTfBf+Ok0SPc1FNGM/z9ctUdiU618qwKpWnd0CHs3+RqROfyEg/DhuHbMWYqcgljEw==",
+      "dev": true,
+      "optional": true,
+      "requires": {
+        "global-dirs": "^0.1.1"
+      }
+    },
     "resolve-url": {
       "version": "0.2.1",
       "resolved": "https://registry.npmjs.org/resolve-url/-/resolve-url-0.2.1.tgz",
diff --git a/package.json b/package.json
index f502afc..4974c3a 100644
--- a/package.json
+++ b/package.json
@@ -91,7 +91,7 @@
     "commitizen": "^2.9.6",
     "coveralls": "^3.0.0",
     "cross-env": "^5.0.1",
-    "cz-conventional-changelog": "^2.0.0",
+    "cz-conventional-changelog": "^3.0.0",
     "husky": "^0.14.0",
     "jest": "^23.2.0",
     "lint-staged": "^7.0.0",