diff --git a/package-lock.json b/package-lock.json
index 8db12ed4..30ad2ec7 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -13,6 +13,12 @@
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@@ -66,6 +72,29 @@
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+      "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-4.1.0.tgz",
+      "integrity": "sha1-1UVjW+HjPFQmScaRc+Xeas+uNN0=",
+      "dev": true
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+      "resolved": "https://registry.npmjs.org/cliui/-/cliui-4.0.0.tgz",
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@@ -111,6 +140,23 @@
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+      "resolved": "https://registry.npmjs.org/cross-spawn/-/cross-spawn-5.1.0.tgz",
+      "integrity": "sha1-6L0O/uWPz/b4+UUQoKVUu/ojVEk=",
+      "dev": true,
+      "requires": {
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+        "which": "1.3.0"
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+      "resolved": "https://registry.npmjs.org/decamelize/-/decamelize-1.2.0.tgz",
+      "integrity": "sha1-9lNNFRSCabIDUue+4m9QH5oZEpA=",
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       "dev": true
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+      "resolved": "https://registry.npmjs.org/execa/-/execa-0.7.0.tgz",
+      "integrity": "sha1-lEvs00zEHuMqY6n68nrVpl/Fl3c=",
+      "dev": true,
+      "requires": {
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+        "get-stream": "3.0.0",
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@@ -154,6 +215,15 @@
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@@ -166,6 +236,18 @@
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@@ -215,6 +297,12 @@
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@@ -227,6 +315,12 @@
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+      "resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-2.0.0.tgz",
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@@ -253,12 +347,24 @@
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+      "integrity": "sha1-EtSj3U5o4Lec6428hBc66A2RykQ=",
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+      "resolved": "https://registry.npmjs.org/isexe/-/isexe-2.0.0.tgz",
+      "integrity": "sha1-6PvzdNxVb/iUehDcsFctYz8s+hA=",
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@@ -296,6 +402,15 @@
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+      "integrity": "sha1-MIrMr6C8SDo4Z7S28rlQYlHRuDU=",
+      "dev": true,
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@@ -308,6 +423,26 @@
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+      "integrity": "sha1-K1aLJl7slExtnA3pw9u7ygNUzY4=",
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@@ -334,6 +469,21 @@
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@@ -370,6 +520,21 @@
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+      "dev": true,
+      "requires": {
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@@ -396,18 +561,77 @@
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+      "requires": {
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+        "lcid": "1.0.0",
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+      "dev": true
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+      "resolved": "https://registry.npmjs.org/p-limit/-/p-limit-1.2.0.tgz",
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+      "resolved": "https://registry.npmjs.org/p-locate/-/p-locate-2.0.0.tgz",
+      "integrity": "sha1-IKAQOyIqcMj9OcwuWAaA893l7EM=",
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@@ -504,12 +728,30 @@
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+      "integrity": "sha1-BF+XgtARrppoA93TgrJDkrPYkPc=",
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@@ -519,12 +761,43 @@
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+      "dev": true,
+      "requires": {
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+      "resolved": "https://registry.npmjs.org/shebang-regex/-/shebang-regex-1.0.0.tgz",
+      "integrity": "sha1-2kL0l0DAtC2yypcoVxyxkMmO/qM=",
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@@ -534,12 +807,27 @@
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@@ -579,11 +867,114 @@
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+        "string-width": {
+          "version": "1.0.2",
+          "resolved": "https://registry.npmjs.org/string-width/-/string-width-1.0.2.tgz",
+          "integrity": "sha1-EYvfW4zcUaKn5w0hHgfisLmxB9M=",
+          "dev": true,
+          "requires": {
+            "code-point-at": "1.1.0",
+            "is-fullwidth-code-point": "1.0.0",
+            "strip-ansi": "3.0.1"
+          }
+        },
+        "strip-ansi": {
+          "version": "3.0.1",
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
+          "integrity": "sha1-ajhfuIU9lS1f8F0Oiq+UJ43GPc8=",
+          "dev": true,
+          "requires": {
+            "ansi-regex": "2.1.1"
+          }
+        }
+      }
+    },
     "wrappy": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
       "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=",
       "dev": true
+    },
+    "y18n": {
+      "version": "3.2.1",
+      "resolved": "https://registry.npmjs.org/y18n/-/y18n-3.2.1.tgz",
+      "integrity": "sha1-bRX7qITAhnnA136I53WegR4H+kE=",
+      "dev": true
+    },
+    "yallist": {
+      "version": "2.1.2",
+      "resolved": "https://registry.npmjs.org/yallist/-/yallist-2.1.2.tgz",
+      "integrity": "sha1-HBH5IY8HYImkfdUS+TxmmaaoHVI=",
+      "dev": true
+    },
+    "yargs": {
+      "version": "11.0.0",
+      "resolved": "https://registry.npmjs.org/yargs/-/yargs-11.0.0.tgz",
+      "integrity": "sha512-Rjp+lMYQOWtgqojx1dEWorjCofi1YN7AoFvYV7b1gx/7dAAeuI4kN5SZiEvr0ZmsZTOpDRcCqrpI10L31tFkBw==",
+      "dev": true,
+      "requires": {
+        "cliui": "4.0.0",
+        "decamelize": "1.2.0",
+        "find-up": "2.1.0",
+        "get-caller-file": "1.0.2",
+        "os-locale": "2.1.0",
+        "require-directory": "2.1.1",
+        "require-main-filename": "1.0.1",
+        "set-blocking": "2.0.0",
+        "string-width": "2.1.1",
+        "which-module": "2.0.0",
+        "y18n": "3.2.1",
+        "yargs-parser": "9.0.2"
+      }
+    },
+    "yargs-parser": {
+      "version": "9.0.2",
+      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-9.0.2.tgz",
+      "integrity": "sha1-nM9qQ0YP5O1Aqbto9I1DuKaMwHc=",
+      "dev": true,
+      "requires": {
+        "camelcase": "4.1.0"
+      }
     }
   }
 }
diff --git a/package.json b/package.json
index 14589cfd..84276e14 100644
--- a/package.json
+++ b/package.json
@@ -24,7 +24,7 @@
     "highlight.js": "^9.12.0",
     "markdown-link": "^0.1.1",
     "markdown-toc": "^1.1.0",
-    "minimist": "^1.2.0",
-    "remarkable": "^1.7.1"
+    "remarkable": "^1.7.1",
+    "yargs": "^11.0.0"
   }
 }
diff --git a/scripts/summary.js b/scripts/summary.js
index 1c4f365b..663b6131 100755
--- a/scripts/summary.js
+++ b/scripts/summary.js
@@ -8,22 +8,21 @@ const path = require("path");
 const glob = require("glob");
 const toc = require("markdown-toc");
 const mdlink = require("markdown-link", "mdlink");
-const argv = require("minimist")(process.argv.slice(2), {
-    string: ["_"]
-});
+const yargs = require('yargs');
+const yargv = yargs
+  .strict()
+  .usage('Usage: ./scripts/summary.js <notes-folder>')
+  .example('./scripts/summary.js es9/2018-03/');
 
-if (!argv._.length) {
-    console.error(`Folder not specified.
-    
-Usage example:
+const argv = yargv.argv;
 
-./scripts/summary.js es9/2018-03`);
+if (argv._.length) {
+    main(argv._[0]);
 } else {
-    main();
+    yargv.showHelp();
 }
 
-function main() {
-    const folder = argv._[0];
+function main(folder) {
     glob(`./${folder}/*.md`, (error, results) => {
         if (error) {
             throw error;