diff --git a/package-lock.json b/package-lock.json
index 20b3275..178847e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1501,6 +1501,11 @@
       "integrity": "sha1-ibTRmasr7kneFk6gK4nORi1xt2c=",
       "dev": true
     },
+    "base64-js": {
+      "version": "1.3.1",
+      "resolved": "https://registry.npmjs.org/base64-js/-/base64-js-1.3.1.tgz",
+      "integrity": "sha512-mLQ4i2QO1ytvGWFWmcngKO//JXAQueZvwEKtjgQFM4jIK0kU+ytMfplL8j+n5mspOfjHwoAg+9yhb7BwAHm36g=="
+    },
     "basic-auth": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/basic-auth/-/basic-auth-2.0.1.tgz",
@@ -1726,11 +1731,44 @@
       "integrity": "sha1-M3dm2hWAEhD92VbCLpxokaudAzc=",
       "dev": true
     },
+    "buffer": {
+      "version": "5.6.0",
+      "resolved": "https://registry.npmjs.org/buffer/-/buffer-5.6.0.tgz",
+      "integrity": "sha512-/gDYp/UtU0eA1ys8bOs9J6a+E/KWIY+DZ+Q2WESNUA0jFRsJOc0SNUO6xJ5SGA1xueg3NL65W6s+NY5l9cunuw==",
+      "requires": {
+        "base64-js": "^1.0.2",
+        "ieee754": "^1.1.4"
+      }
+    },
+    "buffer-alloc": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/buffer-alloc/-/buffer-alloc-1.2.0.tgz",
+      "integrity": "sha512-CFsHQgjtW1UChdXgbyJGtnm+O/uLQeZdtbDo8mfUgYXCHSM1wgrVxXm6bSyrUuErEb+4sYVGCzASBRot7zyrow==",
+      "requires": {
+        "buffer-alloc-unsafe": "^1.1.0",
+        "buffer-fill": "^1.0.0"
+      }
+    },
+    "buffer-alloc-unsafe": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/buffer-alloc-unsafe/-/buffer-alloc-unsafe-1.1.0.tgz",
+      "integrity": "sha512-TEM2iMIEQdJ2yjPJoSIsldnleVaAk1oW3DBVUykyOLsEsFmEc9kn+SFFPz+gl54KQNxlDnAwCXosOS9Okx2xAg=="
+    },
     "buffer-equal-constant-time": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/buffer-equal-constant-time/-/buffer-equal-constant-time-1.0.1.tgz",
       "integrity": "sha1-+OcRMvf/5uAaXJaXpMbz5I1cyBk="
     },
+    "buffer-fill": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/buffer-fill/-/buffer-fill-1.0.0.tgz",
+      "integrity": "sha1-+PeLdniYiO858gXNY39o5wISKyw="
+    },
+    "buffer-from": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/buffer-from/-/buffer-from-1.1.1.tgz",
+      "integrity": "sha512-MQcXEUbCKtEo7bhqEs6560Hyd4XaovZlO/k9V3hjVUF/zwW7KBVdSK4gIt/bzwS9MbR5qob+F5jusZsb0YQK2A=="
+    },
     "bytes": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/bytes/-/bytes-3.1.0.tgz",
@@ -4249,6 +4287,11 @@
         "safer-buffer": ">= 2.1.2 < 3"
       }
     },
+    "ieee754": {
+      "version": "1.1.13",
+      "resolved": "https://registry.npmjs.org/ieee754/-/ieee754-1.1.13.tgz",
+      "integrity": "sha512-4vf7I2LYV/HaWerSo3XmlMkp5eZ83i+/CDluXi/IGTs/O1sejBNhTtnxzmRZfvOUqj7lZjqHkeTvpgSFDlWZTg=="
+    },
     "ignore": {
       "version": "4.0.6",
       "resolved": "https://registry.npmjs.org/ignore/-/ignore-4.0.6.tgz",
@@ -9728,10 +9771,13 @@
       "dev": true
     },
     "qrcode": {
-      "version": "1.4.2",
-      "resolved": "https://registry.npmjs.org/qrcode/-/qrcode-1.4.2.tgz",
-      "integrity": "sha512-eR6RgxFYPDFH+zFLTJKtoNP/RlsHANQb52AUmQ2bGDPMuUw7jJb0F+DNEgx7qQGIElrbFxWYMc0/B91zLZPF9Q==",
+      "version": "1.4.4",
+      "resolved": "https://registry.npmjs.org/qrcode/-/qrcode-1.4.4.tgz",
+      "integrity": "sha512-oLzEC5+NKFou9P0bMj5+v6Z40evexeE29Z9cummZXZ9QXyMr3lphkURzxjXgPJC5azpxcshoDWV1xE46z+/c3Q==",
       "requires": {
+        "buffer": "^5.4.3",
+        "buffer-alloc": "^1.2.0",
+        "buffer-from": "^1.1.1",
         "dijkstrajs": "^1.0.1",
         "isarray": "^2.0.1",
         "pngjs": "^3.3.0",
@@ -11607,9 +11653,9 @@
       }
     },
     "yargs": {
-      "version": "13.3.0",
-      "resolved": "https://registry.npmjs.org/yargs/-/yargs-13.3.0.tgz",
-      "integrity": "sha512-2eehun/8ALW8TLoIl7MVaRUrg+yCnenu8B4kBlRxj3GJGDKU1Og7sMXPNm1BYyM1DOJmTZ4YeN/Nwxv+8XJsUA==",
+      "version": "13.3.2",
+      "resolved": "https://registry.npmjs.org/yargs/-/yargs-13.3.2.tgz",
+      "integrity": "sha512-AX3Zw5iPruN5ie6xGRIDgqkT+ZhnRlZMLMHAs8tg7nRruy2Nb+i5o9bwghAogtM08q1dpr2LVoS8KSTMYpWXUw==",
       "requires": {
         "cliui": "^5.0.0",
         "find-up": "^3.0.0",
@@ -11620,7 +11666,7 @@
         "string-width": "^3.0.0",
         "which-module": "^2.0.0",
         "y18n": "^4.0.0",
-        "yargs-parser": "^13.1.1"
+        "yargs-parser": "^13.1.2"
       },
       "dependencies": {
         "ansi-regex": {
@@ -11649,9 +11695,9 @@
       }
     },
     "yargs-parser": {
-      "version": "13.1.1",
-      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-13.1.1.tgz",
-      "integrity": "sha512-oVAVsHz6uFrg3XQheFII8ESO2ssAf9luWuAd6Wexsu4F3OtIW0o8IribPXYrD4WC24LWtPrJlGy87y5udK+dxQ==",
+      "version": "13.1.2",
+      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-13.1.2.tgz",
+      "integrity": "sha512-3lbsNRf/j+A4QuSZfDRA7HRSfWrzO0YjqTJd5kjAq37Zep1CEgaYmrH9Q3GwPiB9cHyd1Y1UwggGhJGoxipbzg==",
       "requires": {
         "camelcase": "^5.0.0",
         "decamelize": "^1.2.0"
diff --git a/package.json b/package.json
index ee086c7..ffa08e4 100644
--- a/package.json
+++ b/package.json
@@ -13,7 +13,7 @@
     "express": "^4.16.4",
     "faker": "^4.1.0",
     "morgan": "^1.9.1",
-    "qrcode": "^1.4.2",
+    "qrcode": "^1.4.4",
     "random-seed": "^0.3.0",
     "uuid": "^3.3.3",
     "vash": "^0.12.6"