diff --git a/themes/tranquilpeak/package-lock.json b/themes/tranquilpeak/package-lock.json
index 83869c6..0cf1d43 100644
--- a/themes/tranquilpeak/package-lock.json
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+          "integrity": "sha512-nlLsUzgm1kfLXSXfRZMc1KLAugd4hqJHDTvc2hDIwS3mZAfMEuMbc03SujMF+GEcpaX/qboeycw6iO8JwVv2+g==",
           "dev": true,
           "requires": {
-            "punycode": "^1.4.1"
+            "psl": "^1.1.28",
+            "punycode": "^2.1.1"
           }
         }
       }
@@ -4501,9 +4440,9 @@
       "integrity": "sha1-RPoWGwGHuVSd2Eu5GAL5vYOFzWo="
     },
     "sass-graph": {
-      "version": "2.2.4",
-      "resolved": "https://registry.npmjs.org/sass-graph/-/sass-graph-2.2.4.tgz",
-      "integrity": "sha1-E/vWPNHK8JCLn9k0dq1DpR0eC0k=",
+      "version": "2.2.6",
+      "resolved": "https://registry.npmjs.org/sass-graph/-/sass-graph-2.2.6.tgz",
+      "integrity": "sha512-MKuEYXFSGuRSi8FZ3A7imN1CeVn9Gpw0/SFJKdL1ejXJneI9a5rwlEZrKejhEFAA3O6yr3eIyl/WuvASvlT36g==",
       "dev": true,
       "requires": {
         "glob": "^7.0.0",
@@ -5583,9 +5522,9 @@
       "dev": true
     },
     "yargs": {
-      "version": "7.1.0",
-      "resolved": "https://registry.npmjs.org/yargs/-/yargs-7.1.0.tgz",
-      "integrity": "sha1-a6MY6xaWFyf10oT46gA+jWFU0Mg=",
+      "version": "7.1.1",
+      "resolved": "https://registry.npmjs.org/yargs/-/yargs-7.1.1.tgz",
+      "integrity": "sha512-huO4Fr1f9PmiJJdll5kwoS2e4GqzGSsMT3PPMpOwoVkOK8ckqAewMTZyA6LXVQWflleb/Z8oPBEvNsMft0XE+g==",
       "dev": true,
       "requires": {
         "camelcase": "^3.0.0",
@@ -5600,7 +5539,7 @@
         "string-width": "^1.0.2",
         "which-module": "^1.0.0",
         "y18n": "^3.2.1",
-        "yargs-parser": "^5.0.0"
+        "yargs-parser": "5.0.0-security.0"
       },
       "dependencies": {
         "camelcase": {
@@ -5641,12 +5580,13 @@
       }
     },
     "yargs-parser": {
-      "version": "5.0.0",
-      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-5.0.0.tgz",
-      "integrity": "sha1-J17PDX/+Bcd+ZOfIbkzZS/DhIoo=",
+      "version": "5.0.0-security.0",
+      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-5.0.0-security.0.tgz",
+      "integrity": "sha512-T69y4Ps64LNesYxeYGYPvfoMTt/7y1XtfpIslUeK4um+9Hu7hlGoRtaDLvdXb7+/tfq4opVa2HRY5xGip022rQ==",
       "dev": true,
       "requires": {
-        "camelcase": "^3.0.0"
+        "camelcase": "^3.0.0",
+        "object.assign": "^4.1.0"
       },
       "dependencies": {
         "camelcase": {
diff --git a/themes/tranquilpeak/package.json b/themes/tranquilpeak/package.json
index 9519825..1063b9b 100644
--- a/themes/tranquilpeak/package.json
+++ b/themes/tranquilpeak/package.json
@@ -46,7 +46,7 @@
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     "include-all": "4.0.3",
     "load-grunt-tasks": "5.1.0",
-    "node-sass": "4.12.0",
+    "node-sass": "4.13.1",
     "rand-token": "0.4.0"
   },
   "dependencies": {