diff --git a/package-lock.json b/package-lock.json
index ee2ade9..8383671 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10,9 +10,9 @@
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-      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-5.0.0.tgz",
-      "integrity": "sha512-bY6fj56OUQ0hU1KjFNDQuJFezqKdrAyFdIevADiqrWHwSlbmBNMHp5ak2f40Pm8JTFyM2mqxkG6ngkHO11f/lg=="
+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-5.0.1.tgz",
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     "ansi-styles": {
       "version": "4.3.0",
@@ -23,12 +23,12 @@
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     "cliui": {
-      "version": "7.0.4",
-      "resolved": "https://registry.npmjs.org/cliui/-/cliui-7.0.4.tgz",
-      "integrity": "sha512-OcRE68cOsVMXp1Yvonl/fzkQOyjLSu/8bhPDfQt0e0/Eb283TKP20Fs2MqoPsr9SwA595rRCA+QMzYc9nBP+JQ==",
+      "version": "8.0.1",
+      "resolved": "https://registry.npmjs.org/cliui/-/cliui-8.0.1.tgz",
+      "integrity": "sha512-BSeNnyus75C4//NQ9gQt1/csTXyo/8Sb+afLAkzAptFuMsod9HFokGNudZpi/oQV73hnVK+sR+5PVRMd+Dr7YQ==",
       "requires": {
         "string-width": "^4.2.0",
-        "strip-ansi": "^6.0.0",
+        "strip-ansi": "^6.0.1",
         "wrap-ansi": "^7.0.0"
       }
     },
@@ -80,13 +80,13 @@
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-      "version": "4.2.2",
-      "resolved": "https://registry.npmjs.org/string-width/-/string-width-4.2.2.tgz",
-      "integrity": "sha512-XBJbT3N4JhVumXE0eoLU9DCjcaF92KLNqTmFCnG1pf8duUxFGwtP6AD6nkjw9a3IdiRtL3E2w3JDiE/xi3vOeA==",
+      "version": "4.2.3",
+      "resolved": "https://registry.npmjs.org/string-width/-/string-width-4.2.3.tgz",
+      "integrity": "sha512-wKyQRQpjJ0sIp62ErSZdGsjMJWsap5oRNihHhu6G7JVO/9jIB6UyevL+tXuOqrng8j/cxKTWyWUwvSTriiZz/g==",
       "requires": {
         "emoji-regex": "^8.0.0",
         "is-fullwidth-code-point": "^3.0.0",
-        "strip-ansi": "^6.0.0"
+        "strip-ansi": "^6.0.1"
       }
     },
     "string.prototype.codepointat": {
@@ -95,11 +95,11 @@
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     },
     "strip-ansi": {
-      "version": "6.0.0",
-      "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-6.0.0.tgz",
-      "integrity": "sha512-AuvKTrTfQNYNIctbR1K/YGTR1756GycPsg7b9bdV9Duqur4gv6aKqHXah67Z8ImS7WEz5QVcOtlfW2rZEugt6w==",
+      "version": "6.0.1",
+      "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-6.0.1.tgz",
+      "integrity": "sha512-Y38VPSHcqkFrCpFnQ9vuSXmquuv5oXOKpGeT6aGrr3o3Gc9AlVa6JBfUSOCnbxGGZF+/0ooI7KrPuUSztUdU5A==",
       "requires": {
-        "ansi-regex": "^5.0.0"
+        "ansi-regex": "^5.0.1"
       }
     },
     "tiny-inflate": {
@@ -123,23 +123,23 @@
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     },
     "yargs": {
-      "version": "17.1.0",
-      "resolved": "https://registry.npmjs.org/yargs/-/yargs-17.1.0.tgz",
-      "integrity": "sha512-SQr7qqmQ2sNijjJGHL4u7t8vyDZdZ3Ahkmo4sc1w5xI9TBX0QDdG/g4SFnxtWOsGLjwHQue57eFALfwFCnixgg==",
+      "version": "17.6.0",
+      "resolved": "https://registry.npmjs.org/yargs/-/yargs-17.6.0.tgz",
+      "integrity": "sha512-8H/wTDqlSwoSnScvV2N/JHfLWOKuh5MVla9hqLjK3nsfyy6Y4kDSYSvkU5YCUEPOSnRXfIyx3Sq+B/IWudTo4g==",
       "requires": {
-        "cliui": "^7.0.2",
+        "cliui": "^8.0.1",
         "escalade": "^3.1.1",
         "get-caller-file": "^2.0.5",
         "require-directory": "^2.1.1",
-        "string-width": "^4.2.0",
+        "string-width": "^4.2.3",
         "y18n": "^5.0.5",
-        "yargs-parser": "^20.2.2"
+        "yargs-parser": "^21.0.0"
       }
     },
     "yargs-parser": {
-      "version": "20.2.9",
-      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-20.2.9.tgz",
-      "integrity": "sha512-y11nGElTIV+CT3Zv9t7VKl+Q3hTQoT9a1Qzezhhl6Rp21gJ/IVTW7Z3y9EWXhuUBC2Shnf+DX0antecpAwSP8w=="
+      "version": "21.1.1",
+      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-21.1.1.tgz",
+      "integrity": "sha512-tVpsJW7DdjecAiFpbIB1e3qxIQsE6NoPc5/eTdrbbIC4h0LVsWhnoa3g+m2HclBIujHzsxZ4VJVA+GUuc2/LBw=="
     }
   }
 }
diff --git a/package.json b/package.json
index 0727b62..fbf9d71 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
   "dependencies": {
     "adm-zip": "^0.5.5",
     "opentype.js": "^1.3.3",
-    "yargs": "^17.1.0"
+    "yargs": "^17.6.0"
   },
   "name": "otu-tool",
   "version": "0.1.0",