diff --git a/package-lock.json b/package-lock.json
index d865e92..9ff89f4 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -266,6 +266,14 @@
       "requires": {
         "ast-types-flow": "0.0.7",
         "commander": "^2.11.0"
+      },
+      "dependencies": {
+        "commander": {
+          "version": "2.20.0",
+          "resolved": "https://registry.npmjs.org/commander/-/commander-2.20.0.tgz",
+          "integrity": "sha512-7j2y+40w61zy6YC2iRNpUe/NwhNyoXrYpHMrSunaMG64nRnaf96zO/KMQR4OyN/UnE5KLyEBnKHd4aG3rskjpQ==",
+          "dev": true
+        }
       }
     },
     "arr-diff": {
@@ -421,6 +429,14 @@
         "slash": "^1.0.0",
         "source-map": "^0.5.6",
         "v8flags": "^2.1.1"
+      },
+      "dependencies": {
+        "commander": {
+          "version": "2.20.0",
+          "resolved": "https://registry.npmjs.org/commander/-/commander-2.20.0.tgz",
+          "integrity": "sha512-7j2y+40w61zy6YC2iRNpUe/NwhNyoXrYpHMrSunaMG64nRnaf96zO/KMQR4OyN/UnE5KLyEBnKHd4aG3rskjpQ==",
+          "dev": true
+        }
       }
     },
     "babel-code-frame": {
@@ -1285,9 +1301,9 @@
       }
     },
     "commander": {
-      "version": "2.17.1",
-      "resolved": "https://registry.npmjs.org/commander/-/commander-2.17.1.tgz",
-      "integrity": "sha512-wPMUt6FnH2yzG95SA6mzjQOEKUU3aLaDEmzs1ti+1E9h+CsrZghRlqEM/EJ4KscsQVG8uNN4uVreUeT8+drlgg=="
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/commander/-/commander-3.0.0.tgz",
+      "integrity": "sha512-pl3QrGOBa9RZaslQiqnnKX2J068wcQw7j9AIaBQ9/JEp5RY6je4jKTImg0Bd+rpoONSe7GUFSgkxLeo17m3Pow=="
     },
     "component-emitter": {
       "version": "1.2.1",
@@ -2184,6 +2200,7 @@
       "resolved": "https://registry.npmjs.org/glob-parent/-/glob-parent-2.0.0.tgz",
       "integrity": "sha1-gTg9ctsFT8zPUzbaqQLxgvbtuyg=",
       "dev": true,
+      "optional": true,
       "requires": {
         "is-glob": "^2.0.0"
       }
@@ -2579,7 +2596,8 @@
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/is-extglob/-/is-extglob-1.0.0.tgz",
       "integrity": "sha1-rEaBd8SUNAWgkvyPKXYMb/xiBsA=",
-      "dev": true
+      "dev": true,
+      "optional": true
     },
     "is-finite": {
       "version": "1.0.2",
@@ -2601,6 +2619,7 @@
       "resolved": "https://registry.npmjs.org/is-glob/-/is-glob-2.0.1.tgz",
       "integrity": "sha1-0Jb5JqPe1WAPP9/ZEZjLCIjC2GM=",
       "dev": true,
+      "optional": true,
       "requires": {
         "is-extglob": "^1.0.0"
       }
@@ -3595,6 +3614,7 @@
       "resolved": "https://registry.npmjs.org/normalize-path/-/normalize-path-2.1.1.tgz",
       "integrity": "sha1-GrKLVW4Zg2Oowab35vogE3/mrtk=",
       "dev": true,
+      "optional": true,
       "requires": {
         "remove-trailing-separator": "^1.0.1"
       }
@@ -5208,7 +5228,8 @@
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/remove-trailing-separator/-/remove-trailing-separator-1.1.0.tgz",
       "integrity": "sha1-wkvOKig62tW8P1jg1IJJuSN52O8=",
-      "dev": true
+      "dev": true,
+      "optional": true
     },
     "repeat-element": {
       "version": "1.1.3",
diff --git a/package.json b/package.json
index 10c398e..617c712 100644
--- a/package.json
+++ b/package.json
@@ -34,7 +34,7 @@
   "homepage": "https://github.com/machaj/console-countdown#readme",
   "dependencies": {
     "ascii-numbers": "^1.0.4",
-    "commander": "^2.9.0",
+    "commander": "^3.0.0",
     "csv-stringify": "^4.0.0",
     "moment": "^2.11.2",
     "ttys": "*"