diff --git a/package-lock.json b/package-lock.json
index f3185c3..02532e9 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -19,7 +19,7 @@
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         "parcel-bundler": "^1.12.5",
         "prettier": "^2.5.0",
-        "sass": "^1.43.5"
+        "sass": "^1.56.1"
       }
     },
     "node_modules/@babel/code-frame": {
@@ -5399,6 +5399,12 @@
         "node": ">= 4"
       }
     },
+    "node_modules/immutable": {
+      "version": "4.1.0",
+      "resolved": "https://registry.npmjs.org/immutable/-/immutable-4.1.0.tgz",
+      "integrity": "sha512-oNkuqVTA8jqG1Q6c+UglTOD1xhC1BtjKI7XkCXRkZHrN5m18/XsnUp8Q89GkQO/z+0WjonSvl0FLhDYftp46nQ==",
+      "dev": true
+    },
     "node_modules/import-fresh": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/import-fresh/-/import-fresh-2.0.0.tgz",
@@ -8282,18 +8288,20 @@
       "dev": true
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     "node_modules/sass": {
-      "version": "1.43.5",
-      "resolved": "https://registry.npmjs.org/sass/-/sass-1.43.5.tgz",
-      "integrity": "sha512-WuNm+eAryMgQluL7Mbq9M4EruyGGMyal7Lu58FfnRMVWxgUzIvI7aSn60iNt3kn5yZBMR7G84fAGDcwqOF5JOg==",
+      "version": "1.56.1",
+      "resolved": "https://registry.npmjs.org/sass/-/sass-1.56.1.tgz",
+      "integrity": "sha512-VpEyKpyBPCxE7qGDtOcdJ6fFbcpOM+Emu7uZLxVrkX8KVU/Dp5UF7WLvzqRuUhB6mqqQt1xffLoG+AndxTZrCQ==",
       "dev": true,
       "dependencies": {
-        "chokidar": ">=3.0.0 <4.0.0"
+        "chokidar": ">=3.0.0 <4.0.0",
+        "immutable": "^4.0.0",
+        "source-map-js": ">=0.6.2 <2.0.0"
       },
       "bin": {
         "sass": "sass.js"
       },
       "engines": {
-        "node": ">=8.9.0"
+        "node": ">=12.0.0"
       }
     },
     "node_modules/sass/node_modules/anymatch": {
@@ -8867,6 +8875,15 @@
         "node": ">=0.10.0"
       }
     },
+    "node_modules/source-map-js": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/source-map-js/-/source-map-js-1.0.2.tgz",
+      "integrity": "sha512-R0XvVJ9WusLiqTCEiGCmICCMplcCkIwwR11mOSD9CR5u+IXYdiseeEuXCVAjS54zqwkLcPNnmU4OeJ6tUrWhDw==",
+      "dev": true,
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
     "node_modules/source-map-resolve": {
       "version": "0.5.3",
       "resolved": "https://registry.npmjs.org/source-map-resolve/-/source-map-resolve-0.5.3.tgz",
@@ -14371,6 +14388,12 @@
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       "dev": true
     },
+    "immutable": {
+      "version": "4.1.0",
+      "resolved": "https://registry.npmjs.org/immutable/-/immutable-4.1.0.tgz",
+      "integrity": "sha512-oNkuqVTA8jqG1Q6c+UglTOD1xhC1BtjKI7XkCXRkZHrN5m18/XsnUp8Q89GkQO/z+0WjonSvl0FLhDYftp46nQ==",
+      "dev": true
+    },
     "import-fresh": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/import-fresh/-/import-fresh-2.0.0.tgz",
@@ -16693,12 +16716,14 @@
       "dev": true
     },
     "sass": {
-      "version": "1.43.5",
-      "resolved": "https://registry.npmjs.org/sass/-/sass-1.43.5.tgz",
-      "integrity": "sha512-WuNm+eAryMgQluL7Mbq9M4EruyGGMyal7Lu58FfnRMVWxgUzIvI7aSn60iNt3kn5yZBMR7G84fAGDcwqOF5JOg==",
+      "version": "1.56.1",
+      "resolved": "https://registry.npmjs.org/sass/-/sass-1.56.1.tgz",
+      "integrity": "sha512-VpEyKpyBPCxE7qGDtOcdJ6fFbcpOM+Emu7uZLxVrkX8KVU/Dp5UF7WLvzqRuUhB6mqqQt1xffLoG+AndxTZrCQ==",
       "dev": true,
       "requires": {
-        "chokidar": ">=3.0.0 <4.0.0"
+        "chokidar": ">=3.0.0 <4.0.0",
+        "immutable": "^4.0.0",
+        "source-map-js": ">=0.6.2 <2.0.0"
       },
       "dependencies": {
         "anymatch": {
@@ -17166,6 +17191,12 @@
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       "dev": true
     },
+    "source-map-js": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/source-map-js/-/source-map-js-1.0.2.tgz",
+      "integrity": "sha512-R0XvVJ9WusLiqTCEiGCmICCMplcCkIwwR11mOSD9CR5u+IXYdiseeEuXCVAjS54zqwkLcPNnmU4OeJ6tUrWhDw==",
+      "dev": true
+    },
     "source-map-resolve": {
       "version": "0.5.3",
       "resolved": "https://registry.npmjs.org/source-map-resolve/-/source-map-resolve-0.5.3.tgz",
diff --git a/package.json b/package.json
index c7951f3..a4993bc 100644
--- a/package.json
+++ b/package.json
@@ -14,7 +14,7 @@
     "eslint-plugin-standard": "^5.0.0",
     "parcel-bundler": "^1.12.5",
     "prettier": "^2.5.0",
-    "sass": "^1.43.5"
+    "sass": "^1.56.1"
   },
   "scripts": {
     "build": "parcel build resources/javascript/main.js --out-dir=public/ --out-file dm.js --no-source-maps",