diff --git a/CHANGELOG.md b/CHANGELOG.md
index d61aa451c..fd4f69c99 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,11 @@
 
+2.19.0 / 2018-10-02
+==================
+
+  * Removed newline after Options and Commands headers (#864)
+  * Bugfix - Error output (#862)
+  * Fix to change default value to string (#856)
+
 2.18.0 / 2018-09-07
 ==================
 
diff --git a/package-lock.json b/package-lock.json
index b1f7aaee3..54f6aa992 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "commander",
-  "version": "2.18.0",
+  "version": "2.19.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -42,24 +42,38 @@
       }
     },
     "@sinonjs/formatio": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/@sinonjs/formatio/-/formatio-2.0.0.tgz",
-      "integrity": "sha512-ls6CAMA6/5gG+O/IdsBcblvnd8qcO/l1TYoNeAzp3wcISOxlPXQEus0mLcdwazEkWjaBdaJ3TaxmNgCLWwvWzg==",
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/@sinonjs/formatio/-/formatio-3.0.0.tgz",
+      "integrity": "sha512-vdjoYLDptCgvtJs57ULshak3iJe4NW3sJ3g36xVDGff5AE8P30S6A093EIEPjdi2noGhfuNOEkbxt3J3awFW1w==",
       "dev": true,
       "requires": {
-        "samsam": "1.3.0"
+        "@sinonjs/samsam": "2.1.0"
+      },
+      "dependencies": {
+        "@sinonjs/samsam": {
+          "version": "2.1.0",
+          "resolved": "https://registry.npmjs.org/@sinonjs/samsam/-/samsam-2.1.0.tgz",
+          "integrity": "sha512-5x2kFgJYupaF1ns/RmharQ90lQkd2ELS8A9X0ymkAAdemYHGtI2KiUHG8nX2WU0T1qgnOU5YMqnBM2V7NUanNw==",
+          "dev": true,
+          "requires": {
+            "array-from": "^2.1.1"
+          }
+        }
       }
     },
     "@sinonjs/samsam": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/@sinonjs/samsam/-/samsam-2.0.0.tgz",
-      "integrity": "sha512-D7VxhADdZbDJ0HjUTMnSQ5xIGb4H2yWpg8k9Sf1T08zfFiQYlaxM8LZydpR4FQ2E6LZJX8IlabNZ5io4vdChwg==",
-      "dev": true
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/@sinonjs/samsam/-/samsam-2.1.1.tgz",
+      "integrity": "sha512-7oX6PXMulvdN37h88dvlvRyu61GYZau40fL4wEZvPEHvrjpJc3lDv6xDM5n4Z0StufUVB5nDvVZUM+jZHdMOOQ==",
+      "dev": true,
+      "requires": {
+        "array-from": "^2.1.1"
+      }
     },
     "@types/node": {
-      "version": "10.9.4",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-10.9.4.tgz",
-      "integrity": "sha512-fCHV45gS+m3hH17zgkgADUSi2RR1Vht6wOZ0jyHP8rjiQra9f+mIcgwPQHllmDocYOstIEbKlxbFDYlgrTPYqw==",
+      "version": "10.11.3",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-10.11.3.tgz",
+      "integrity": "sha512-3AvcEJAh9EMatxs+OxAlvAEs7OTy6AG94mcH1iqyVDwVVndekLxzwkWQ/Z4SDbY6GO2oyUXyWW8tQ4rENSSQVQ==",
       "dev": true
     },
     "acorn": {
@@ -122,6 +136,12 @@
         "sprintf-js": "~1.0.2"
       }
     },
+    "array-from": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/array-from/-/array-from-2.1.1.tgz",
+      "integrity": "sha1-z+nYwmYoudxa7MYqn12PHzUsEZU=",
+      "dev": true
+    },
     "array-includes": {
       "version": "3.0.3",
       "resolved": "https://registry.npmjs.org/array-includes/-/array-includes-3.0.3.tgz",
@@ -451,16 +471,16 @@
       "dev": true
     },
     "eslint": {
-      "version": "5.5.0",
-      "resolved": "https://registry.npmjs.org/eslint/-/eslint-5.5.0.tgz",
-      "integrity": "sha512-m+az4vYehIJgl1Z0gb25KnFXeqQRdNreYsei1jdvkd9bB+UNQD3fsuiC2AWSQ56P+/t++kFSINZXFbfai+krOw==",
+      "version": "5.6.1",
+      "resolved": "https://registry.npmjs.org/eslint/-/eslint-5.6.1.tgz",
+      "integrity": "sha512-hgrDtGWz368b7Wqf+v1Z69O3ZebNR0+GA7PtDdbmuz4rInFVUV9uw7whjZEiWyLzCjVb5Rs5WRN1TAS6eo7AYA==",
       "dev": true,
       "requires": {
         "@babel/code-frame": "^7.0.0",
         "ajv": "^6.5.3",
         "chalk": "^2.1.0",
         "cross-spawn": "^6.0.5",
-        "debug": "^3.1.0",
+        "debug": "^4.0.1",
         "doctrine": "^2.1.0",
         "eslint-scope": "^4.0.0",
         "eslint-utils": "^1.3.1",
@@ -496,10 +516,19 @@
         "text-table": "^0.2.0"
       },
       "dependencies": {
-        "ignore": {
-          "version": "4.0.6",
-          "resolved": "https://registry.npmjs.org/ignore/-/ignore-4.0.6.tgz",
-          "integrity": "sha512-cyFDKrqc/YdcWFniJhzI42+AzS+gNwmUzOSFcRCQYwySuBBBy/KjuxWLZ/FHEH6Moq1NizMOBWyTcv8O4OZIMg==",
+        "debug": {
+          "version": "4.0.1",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-4.0.1.tgz",
+          "integrity": "sha512-K23FHJ/Mt404FSlp6gSZCevIbTMLX0j3fmHhUEhQ3Wq0FMODW3+cUSoLdy1Gx4polAf4t/lphhmHH35BB8cLYw==",
+          "dev": true,
+          "requires": {
+            "ms": "^2.1.1"
+          }
+        },
+        "ms": {
+          "version": "2.1.1",
+          "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.1.tgz",
+          "integrity": "sha512-tgp+dl5cGk28utYktBsrFqA7HKgrhgPsg6Z/EfhWI4gl1Hwq8B/GmY/0oXZ6nF8hDVesS/FpnYaD/kOWhYQvyg==",
           "dev": true
         },
         "semver": {
@@ -970,15 +999,6 @@
             "iconv-lite": "^0.4.24",
             "tmp": "^0.0.33"
           }
-        },
-        "iconv-lite": {
-          "version": "0.4.24",
-          "resolved": "https://registry.npmjs.org/iconv-lite/-/iconv-lite-0.4.24.tgz",
-          "integrity": "sha512-v3MXnZAcvnywkTUEZomIActle7RXXeedOR31wwl7VlyoXO4Qi9arvSenNQWne1TcRwhCL1HwLI21bEqdpj8/rA==",
-          "dev": true,
-          "requires": {
-            "safer-buffer": ">= 2.1.2 < 3"
-          }
         }
       }
     },
@@ -1180,9 +1200,9 @@
       "dev": true
     },
     "lolex": {
-      "version": "2.7.4",
-      "resolved": "https://registry.npmjs.org/lolex/-/lolex-2.7.4.tgz",
-      "integrity": "sha512-Gh6Vffq/piTeHwunLNFR1jFVaqlwK9GMNUxFcsO1cwHyvbRKHwX8UDkxmrDnbcPdHNmpv7z2kxtkkSx5xkNpMw==",
+      "version": "2.7.5",
+      "resolved": "https://registry.npmjs.org/lolex/-/lolex-2.7.5.tgz",
+      "integrity": "sha512-l9x0+1offnKKIzYVjyXU2SiwhXDLekRzKyhnbyldPHvC7BvLPVpdNUNR2KeMAiCN2D/kLNttZgQD5WjSxuBx3Q==",
       "dev": true
     },
     "loose-envify": {
@@ -1255,12 +1275,12 @@
       "dev": true
     },
     "nise": {
-      "version": "1.4.4",
-      "resolved": "https://registry.npmjs.org/nise/-/nise-1.4.4.tgz",
-      "integrity": "sha512-pxE0c9PzgrUTyhfv5p+5eMIdfU2bLEsq8VQEuE0kxM4zP7SujSar7rk9wpI2F7RyyCEvLyj5O7Is3RER5F36Fg==",
+      "version": "1.4.5",
+      "resolved": "https://registry.npmjs.org/nise/-/nise-1.4.5.tgz",
+      "integrity": "sha512-OHRVvdxKgwZELf2DTgsJEIA4MOq8XWvpSUzoOXyxJ2mY0mMENWC66+70AShLR2z05B1dzrzWlUQJmJERlOUpZw==",
       "dev": true,
       "requires": {
-        "@sinonjs/formatio": "^2.0.0",
+        "@sinonjs/formatio": "3.0.0",
         "just-extend": "^3.0.0",
         "lolex": "^2.3.2",
         "path-to-regexp": "^1.7.0",
@@ -1635,9 +1655,9 @@
       "dev": true
     },
     "rxjs": {
-      "version": "6.3.2",
-      "resolved": "https://registry.npmjs.org/rxjs/-/rxjs-6.3.2.tgz",
-      "integrity": "sha512-hV7criqbR0pe7EeL3O66UYVg92IR0XsA97+9y+BWTePK9SKmEI5Qd3Zj6uPnGkNzXsBywBQWTvujPl+1Kn9Zjw==",
+      "version": "6.3.3",
+      "resolved": "https://registry.npmjs.org/rxjs/-/rxjs-6.3.3.tgz",
+      "integrity": "sha512-JTWmoY9tWCs7zvIk/CvRjhjGaOd+OVBM987mxFo+OW66cGpdKjZcpmc74ES1sB//7Kl/PAe8+wEakuhG4pcgOw==",
       "dev": true,
       "requires": {
         "tslib": "^1.9.0"
@@ -1649,12 +1669,6 @@
       "integrity": "sha512-YZo3K82SD7Riyi0E1EQPojLz7kpepnSQI9IyPbHHg1XXXevb5dJI7tpyN2ADxGcQbHG7vcyRHk0cbwqcQriUtg==",
       "dev": true
     },
-    "samsam": {
-      "version": "1.3.0",
-      "resolved": "https://registry.npmjs.org/samsam/-/samsam-1.3.0.tgz",
-      "integrity": "sha512-1HwIYD/8UlOtFS3QO3w7ey+SdSDFE4HRNLZoZRYVQefrOY3l17epswImeB1ijgJFQJodIaHcwkp3r/myBjFVbg==",
-      "dev": true
-    },
     "semver": {
       "version": "5.5.0",
       "resolved": "https://registry.npmjs.org/semver/-/semver-5.5.0.tgz",
@@ -1737,18 +1751,18 @@
       "dev": true
     },
     "sinon": {
-      "version": "6.2.0",
-      "resolved": "https://registry.npmjs.org/sinon/-/sinon-6.2.0.tgz",
-      "integrity": "sha512-gLFZz5UYvOhYzQ+DBzw/OCkmWaLAHlAyQiE2wxUOmAGVdasP9Yw93E+OwZ0UuhW3ReMu1FKniuNsL6VukvC77w==",
+      "version": "6.3.4",
+      "resolved": "https://registry.npmjs.org/sinon/-/sinon-6.3.4.tgz",
+      "integrity": "sha512-NIaR56Z1mefuRBXYrf4otqBxkWiKveX+fvqs3HzFq2b07HcgpkMgIwmQM/owNjNFAHkx0kJXW+Q0mDthiuslXw==",
       "dev": true,
       "requires": {
         "@sinonjs/commons": "^1.0.2",
-        "@sinonjs/formatio": "^2.0.0",
-        "@sinonjs/samsam": "^2.0.0",
+        "@sinonjs/formatio": "^3.0.0",
+        "@sinonjs/samsam": "^2.1.1",
         "diff": "^3.5.0",
         "lodash.get": "^4.4.2",
-        "lolex": "^2.7.2",
-        "nise": "^1.4.4",
+        "lolex": "^2.7.4",
+        "nise": "^1.4.5",
         "supports-color": "^5.5.0",
         "type-detect": "^4.0.8"
       },
@@ -2009,7 +2023,7 @@
     },
     "text-encoding": {
       "version": "0.6.4",
-      "resolved": "https://registry.npmjs.org/text-encoding/-/text-encoding-0.6.4.tgz",
+      "resolved": "http://registry.npmjs.org/text-encoding/-/text-encoding-0.6.4.tgz",
       "integrity": "sha1-45mpgiV6J22uQou5KEXLcb3CbRk=",
       "dev": true
     },
diff --git a/package.json b/package.json
index 5ce7058a9..a68384294 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "commander",
-  "version": "2.18.0",
+  "version": "2.19.0",
   "description": "the complete solution for node.js command-line programs",
   "keywords": [
     "commander",
@@ -26,10 +26,10 @@
   ],
   "dependencies": {},
   "devDependencies": {
-    "@types/node": "^10.9.4",
-    "eslint": "^5.5.0",
+    "@types/node": "^10.11.3",
+    "eslint": "^5.6.1",
     "should": "^13.2.3",
-    "sinon": "^6.2.0",
+    "sinon": "^6.3.4",
     "standard": "^12.0.1",
     "ts-node": "^7.0.1",
     "typescript": "^2.9.2"