diff --git a/package-lock.json b/package-lock.json
index 8a70568..8672304 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -187,7 +187,7 @@
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@@ -557,12 +558,14 @@
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@@ -704,7 +710,8 @@
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@@ -716,6 +723,7 @@
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@@ -730,6 +738,7 @@
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@@ -938,7 +952,8 @@
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@@ -974,6 +989,7 @@
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@@ -3529,6 +3548,14 @@
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@@ -5315,6 +5342,11 @@
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@@ -5529,6 +5561,11 @@
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-      "integrity": "sha1-4g/146KvwmkDILbcVSaCqcf631E="
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-      "integrity": "sha1-4j8/nE+Pvd6HJSnBBxhXoIblzO8="
+      "integrity": "sha1-4j8/nE+Pvd6HJSnBBxhXoIblzO8=",
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-          "integrity": "sha1-o1AIsg9BOD7sH7kU9M1d95omQoQ="
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@@ -7679,6 +7705,11 @@
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@@ -7868,6 +7899,11 @@
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@@ -7877,6 +7913,17 @@
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@@ -8580,7 +8627,7 @@
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@@ -8594,13 +8641,13 @@
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-          "resolved": "http://registry.npmjs.org/minimist/-/minimist-1.2.0.tgz",
+          "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.0.tgz",
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-          "resolved": "http://registry.npmjs.org/pify/-/pify-2.3.0.tgz",
+          "resolved": "https://registry.npmjs.org/pify/-/pify-2.3.0.tgz",
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@@ -8828,7 +8875,7 @@
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-          "resolved": "http://registry.npmjs.org/pify/-/pify-2.3.0.tgz",
+          "resolved": "https://registry.npmjs.org/pify/-/pify-2.3.0.tgz",
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@@ -8917,7 +8964,7 @@
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-      "resolved": "http://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz",
+      "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz",
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@@ -9026,7 +9073,7 @@
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-          "resolved": "http://registry.npmjs.org/jsesc/-/jsesc-0.5.0.tgz",
+          "resolved": "https://registry.npmjs.org/jsesc/-/jsesc-0.5.0.tgz",
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@@ -9232,9 +9279,9 @@
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-      "integrity": "sha1-E/vWPNHK8JCLn9k0dq1DpR0eC0k=",
+      "version": "2.2.6",
+      "resolved": "https://registry.npmjs.org/sass-graph/-/sass-graph-2.2.6.tgz",
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@@ -9275,7 +9322,7 @@
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-      "resolved": "http://registry.npmjs.org/sax/-/sax-0.5.8.tgz",
+      "resolved": "https://registry.npmjs.org/sax/-/sax-0.5.8.tgz",
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@@ -10217,7 +10264,7 @@
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-      "resolved": "http://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
+      "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
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@@ -10285,7 +10332,7 @@
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@@ -10560,7 +10607,7 @@
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-          "resolved": "http://registry.npmjs.org/minimist/-/minimist-1.2.0.tgz",
+          "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.0.tgz",
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@@ -11028,7 +11075,7 @@
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-          "resolved": "http://registry.npmjs.org/source-map/-/source-map-0.4.4.tgz",
+          "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.4.4.tgz",
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@@ -11178,7 +11225,8 @@
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+              "dev": true,
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@@ -11199,12 +11247,14 @@
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-              "dev": true
+              "dev": true,
+              "optional": true
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             "brace-expansion": {
               "version": "1.1.11",
               "bundled": true,
               "dev": true,
+              "optional": true,
               "requires": {
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@@ -11219,17 +11269,20 @@
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-              "dev": true
+              "dev": true,
+              "optional": true
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               "version": "0.0.1",
               "bundled": true,
-              "dev": true
+              "dev": true,
+              "optional": true
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               "version": "1.1.0",
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-              "dev": true
+              "dev": true,
+              "optional": true
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@@ -11346,7 +11399,8 @@
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-              "dev": true
+              "dev": true,
+              "optional": true
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@@ -11358,6 +11412,7 @@
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               "dev": true,
+              "optional": true,
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               }
@@ -11372,6 +11427,7 @@
               "version": "3.0.4",
               "bundled": true,
               "dev": true,
+              "optional": true,
               "requires": {
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@@ -11379,12 +11435,14 @@
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-              "dev": true
+              "dev": true,
+              "optional": true
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             "minipass": {
               "version": "2.3.5",
               "bundled": true,
               "dev": true,
+              "optional": true,
               "requires": {
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@@ -11403,6 +11461,7 @@
               "version": "0.5.1",
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               "dev": true,
+              "optional": true,
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@@ -11483,7 +11542,8 @@
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-              "dev": true
+              "dev": true,
+              "optional": true
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@@ -11495,6 +11555,7 @@
               "version": "1.4.0",
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               "dev": true,
+              "optional": true,
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@@ -11580,7 +11641,8 @@
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@@ -11616,6 +11678,7 @@
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               "dev": true,
+              "optional": true,
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@@ -11635,6 +11698,7 @@
               "version": "3.0.1",
               "bundled": true,
               "dev": true,
+              "optional": true,
               "requires": {
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@@ -11678,12 +11742,14 @@
             "wrappy": {
               "version": "1.0.2",
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-              "dev": true
+              "dev": true,
+              "optional": true
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             "yallist": {
               "version": "3.0.3",
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-              "dev": true
+              "dev": true,
+              "optional": true
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@@ -11999,9 +12065,9 @@
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-      "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==",
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@@ -12015,7 +12081,7 @@
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         "y18n": "^3.2.1",
-        "yargs-parser": "^5.0.0"
+        "yargs-parser": "5.0.0-security.0"
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@@ -12031,11 +12097,12 @@
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-      "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==",
       "requires": {
-        "camelcase": "^3.0.0"
+        "camelcase": "^3.0.0",
+        "object.assign": "^4.1.0"
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diff --git a/package.json b/package.json
index cee7541..e7f593a 100644
--- a/package.json
+++ b/package.json
@@ -29,7 +29,7 @@
     "hammerjs": "^2.0.8",
     "mat-progress-buttons": "^7.1.1",
     "ngx-spinner": "^7.0.0",
-    "node-sass": "^4.11.0",
+    "node-sass": "^4.13.1",
     "rxjs": "~6.5.2",
     "zone.js": "~0.9.1"
   },