diff --git a/svelte-app/package-lock.json b/svelte-app/package-lock.json
index 6f6d3b0..7f5b54d 100644
--- a/svelte-app/package-lock.json
+++ b/svelte-app/package-lock.json
@@ -18,7 +18,7 @@
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         "@rollup/plugin-node-resolve": "^13.0.0",
         "@rollup/plugin-replace": "^2.4.2",
-        "postcss": "^8.3.4",
+        "postcss": "^8.4.31",
         "rollup": "^2.51.2",
         "rollup-plugin-livereload": "^2.0.0",
         "rollup-plugin-postcss": "^4.0.0",
@@ -520,12 +520,6 @@
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     },
-    "node_modules/colorette": {
-      "version": "1.2.2",
-      "resolved": "https://registry.npmjs.org/colorette/-/colorette-1.2.2.tgz",
-      "integrity": "sha512-MKGMzyfeuutC/ZJ1cba9NqcNpfeqMUcYmyF1ZFY6/Cn7CNSAKx6a+s48sqLqyAiZuaP2TcqMhoo+dlwFnVxT9w==",
-      "dev": true
-    },
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       "version": "2.20.3",
       "resolved": "https://registry.npmjs.org/commander/-/commander-2.20.3.tgz",
@@ -1451,21 +1445,31 @@
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     "node_modules/postcss": {
-      "version": "8.3.4",
-      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.3.4.tgz",
-      "integrity": "sha512-/tZY0PXExXXnNhKv3TOvZAOUYRyuqcCbBm2c17YMDK0PlVII3K7/LKdt3ScHL+hhouddjUWi+1sKDf9xXW+8YA==",
+      "version": "8.4.31",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.31.tgz",
+      "integrity": "sha512-PS08Iboia9mts/2ygV3eLpY5ghnUcfLV/EXTOW1E2qYxJKGGBUtNjN76FYHnMs36RmARn41bC0AZmn+rR0OVpQ==",
       "dev": true,
+      "funding": [
+        {
+          "type": "opencollective",
+          "url": "https://opencollective.com/postcss/"
+        },
+        {
+          "type": "tidelift",
+          "url": "https://tidelift.com/funding/github/npm/postcss"
+        },
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/ai"
+        }
+      ],
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-        "colorette": "^1.2.2",
-        "nanoid": "^3.1.23",
-        "source-map-js": "^0.6.2"
+        "nanoid": "^3.3.6",
+        "picocolors": "^1.0.0",
+        "source-map-js": "^1.0.2"
       },
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         "node": "^10 || ^12 || >=14"
-      },
-      "funding": {
-        "type": "opencollective",
-        "url": "https://opencollective.com/postcss/"
       }
     },
     "node_modules/postcss-calc": {
@@ -2329,9 +2333,9 @@
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-      "version": "0.6.2",
-      "resolved": "https://registry.npmjs.org/source-map-js/-/source-map-js-0.6.2.tgz",
-      "integrity": "sha512-/3GptzWzu0+0MBQFrDKzw/DvvMTUORvgY6k6jd/VS6iCR4RDTKWH6v6WPwQoUO8667uQEf9Oe38DxAYWY5F/Ug==",
+      "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"
@@ -2956,12 +2960,6 @@
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       "dev": true
     },
-    "colorette": {
-      "version": "1.2.2",
-      "resolved": "https://registry.npmjs.org/colorette/-/colorette-1.2.2.tgz",
-      "integrity": "sha512-MKGMzyfeuutC/ZJ1cba9NqcNpfeqMUcYmyF1ZFY6/Cn7CNSAKx6a+s48sqLqyAiZuaP2TcqMhoo+dlwFnVxT9w==",
-      "dev": true
-    },
     "commander": {
       "version": "2.20.3",
       "resolved": "https://registry.npmjs.org/commander/-/commander-2.20.3.tgz",
@@ -3661,14 +3659,14 @@
       "dev": true
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     "postcss": {
-      "version": "8.3.4",
-      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.3.4.tgz",
-      "integrity": "sha512-/tZY0PXExXXnNhKv3TOvZAOUYRyuqcCbBm2c17YMDK0PlVII3K7/LKdt3ScHL+hhouddjUWi+1sKDf9xXW+8YA==",
+      "version": "8.4.31",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.31.tgz",
+      "integrity": "sha512-PS08Iboia9mts/2ygV3eLpY5ghnUcfLV/EXTOW1E2qYxJKGGBUtNjN76FYHnMs36RmARn41bC0AZmn+rR0OVpQ==",
       "dev": true,
       "requires": {
-        "colorette": "^1.2.2",
-        "nanoid": "^3.1.23",
-        "source-map-js": "^0.6.2"
+        "nanoid": "^3.3.6",
+        "picocolors": "^1.0.0",
+        "source-map-js": "^1.0.2"
       }
     },
     "postcss-calc": {
@@ -4253,9 +4251,9 @@
       "dev": true
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     "source-map-js": {
-      "version": "0.6.2",
-      "resolved": "https://registry.npmjs.org/source-map-js/-/source-map-js-0.6.2.tgz",
-      "integrity": "sha512-/3GptzWzu0+0MBQFrDKzw/DvvMTUORvgY6k6jd/VS6iCR4RDTKWH6v6WPwQoUO8667uQEf9Oe38DxAYWY5F/Ug==",
+      "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-support": {
diff --git a/svelte-app/package.json b/svelte-app/package.json
index 10abe78..2513d82 100644
--- a/svelte-app/package.json
+++ b/svelte-app/package.json
@@ -14,7 +14,7 @@
     "@rollup/plugin-commonjs": "^19.0.0",
     "@rollup/plugin-node-resolve": "^13.0.0",
     "@rollup/plugin-replace": "^2.4.2",
-    "postcss": "^8.3.4",
+    "postcss": "^8.4.31",
     "rollup": "^2.51.2",
     "rollup-plugin-livereload": "^2.0.0",
     "rollup-plugin-postcss": "^4.0.0",