diff --git a/templates/mellow-svelte/package-lock.json b/templates/mellow-svelte/package-lock.json
index 1df0cd8a..d4db9b14 100644
--- a/templates/mellow-svelte/package-lock.json
+++ b/templates/mellow-svelte/package-lock.json
@@ -16,7 +16,7 @@
         "sails": "^1.5.2",
         "sails-hook-orm": "^4.0.0",
         "sails-hook-sockets": "^2.0.0",
-        "svelte": "^3.48.0",
+        "svelte": "^4.2.8",
         "webpack": "^5.72.1"
       },
       "devDependencies": {
@@ -60,7 +60,6 @@
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       "resolved": "https://registry.npmjs.org/@ampproject/remapping/-/remapping-2.2.1.tgz",
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-      "dev": true,
       "dependencies": {
         "@jridgewell/gen-mapping": "^0.3.0",
         "@jridgewell/trace-mapping": "^0.3.9"
@@ -2393,6 +2392,14 @@
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       "dev": true
     },
+    "node_modules/aria-query": {
+      "version": "5.3.0",
+      "resolved": "https://registry.npmjs.org/aria-query/-/aria-query-5.3.0.tgz",
+      "integrity": "sha512-b0P0sZPKtyu8HkeRAfCq0IfURZK+SuwMjY1UXGBU27wpAiTwQAIlq56IbIO+ytk/JjS1fMR14ee5WBBfKi5J6A==",
+      "dependencies": {
+        "dequal": "^2.0.3"
+      }
+    },
     "node_modules/array-flatten": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/array-flatten/-/array-flatten-1.1.1.tgz",
@@ -2489,6 +2496,14 @@
         "proxy-from-env": "^1.1.0"
       }
     },
+    "node_modules/axobject-query": {
+      "version": "3.2.1",
+      "resolved": "https://registry.npmjs.org/axobject-query/-/axobject-query-3.2.1.tgz",
+      "integrity": "sha512-jsyHu61e6N4Vbz/v18DHwWYKK0bSWLqn47eeDSKPB7m8tqMHF9YJ+mhIk2lVteyZrY8tnSj/jHOv4YiTCuCJgg==",
+      "dependencies": {
+        "dequal": "^2.0.3"
+      }
+    },
     "node_modules/babel-loader": {
       "version": "8.3.0",
       "resolved": "https://registry.npmjs.org/babel-loader/-/babel-loader-8.3.0.tgz",
@@ -2947,6 +2962,18 @@
         "webpack": ">=4.0.0 <6.0.0"
       }
     },
+    "node_modules/code-red": {
+      "version": "1.0.4",
+      "resolved": "https://registry.npmjs.org/code-red/-/code-red-1.0.4.tgz",
+      "integrity": "sha512-7qJWqItLA8/VPVlKJlFXU+NBlo/qyfs39aJcuMT/2ere32ZqvF5OSxgdM5xOfJJ7O429gg2HM47y8v9P+9wrNw==",
+      "dependencies": {
+        "@jridgewell/sourcemap-codec": "^1.4.15",
+        "@types/estree": "^1.0.1",
+        "acorn": "^8.10.0",
+        "estree-walker": "^3.0.3",
+        "periscopic": "^3.1.0"
+      }
+    },
     "node_modules/color-convert": {
       "version": "1.9.3",
       "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-1.9.3.tgz",
@@ -3372,6 +3399,18 @@
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       "dev": true
     },
+    "node_modules/css-tree": {
+      "version": "2.3.1",
+      "resolved": "https://registry.npmjs.org/css-tree/-/css-tree-2.3.1.tgz",
+      "integrity": "sha512-6Fv1DV/TYw//QF5IzQdqsNDjx/wc8TrMBZsqjL9eW01tWb7R7k/mq+/VXfJCl7SoD5emsJop9cOByJZfs8hYIw==",
+      "dependencies": {
+        "mdn-data": "2.0.30",
+        "source-map-js": "^1.0.1"
+      },
+      "engines": {
+        "node": "^10 || ^12.20.0 || ^14.13.0 || >=15.0.0"
+      }
+    },
     "node_modules/cssesc": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/cssesc/-/cssesc-3.0.0.tgz",
@@ -3552,6 +3591,14 @@
         "node": ">= 0.6"
       }
     },
+    "node_modules/dequal": {
+      "version": "2.0.3",
+      "resolved": "https://registry.npmjs.org/dequal/-/dequal-2.0.3.tgz",
+      "integrity": "sha512-0je+qPKHEMohvfRTCEo3CrPG6cAzAYgmzKyxRiYSSDkS6eGJdyVJm7WaYA5ECaAD9wLB2T4EEeymA5aFVcYXCA==",
+      "engines": {
+        "node": ">=6"
+      }
+    },
     "node_modules/destroy": {
       "version": "1.0.4",
       "resolved": "https://registry.npmjs.org/destroy/-/destroy-1.0.4.tgz",
@@ -3800,6 +3847,14 @@
         "node": ">=4.0"
       }
     },
+    "node_modules/estree-walker": {
+      "version": "3.0.3",
+      "resolved": "https://registry.npmjs.org/estree-walker/-/estree-walker-3.0.3.tgz",
+      "integrity": "sha512-7RUKfXgSMMkzt6ZuXmqapOurLGPPfgj6l9uRZ7lRGolvk0y2yocc35LdcxKC5PQZdn2DMqioAQ2NoWcrTKmm6g==",
+      "dependencies": {
+        "@types/estree": "^1.0.0"
+      }
+    },
     "node_modules/esutils": {
       "version": "2.0.3",
       "resolved": "https://registry.npmjs.org/esutils/-/esutils-2.0.3.tgz",
@@ -4729,6 +4784,14 @@
         "node": ">=6"
       }
     },
+    "node_modules/is-reference": {
+      "version": "3.0.2",
+      "resolved": "https://registry.npmjs.org/is-reference/-/is-reference-3.0.2.tgz",
+      "integrity": "sha512-v3rht/LgVcsdZa3O2Nqs+NMowLOxeOm7Ay9+/ARQ2F+qEoANRcqrjAZKGN0v8ymUetZGgkp26LTnGT7H0Qo9Pg==",
+      "dependencies": {
+        "@types/estree": "*"
+      }
+    },
     "node_modules/is-wsl": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/is-wsl/-/is-wsl-1.1.0.tgz",
@@ -4992,6 +5055,11 @@
         "promise": "^5.0.0"
       }
     },
+    "node_modules/locate-character": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/locate-character/-/locate-character-3.0.0.tgz",
+      "integrity": "sha512-SW13ws7BjaeJ6p7Q6CO2nchbYEc3X3J6WrmTTDto7yMPqVSZTUyY5Tjbid+Ab8gLnATtygYtiDIJGQRRn2ZOiA=="
+    },
     "node_modules/locate-path": {
       "version": "5.0.0",
       "resolved": "https://registry.npmjs.org/locate-path/-/locate-path-5.0.0.tgz",
@@ -5139,6 +5207,17 @@
         "machine": "^15.0.0-2"
       }
     },
+    "node_modules/magic-string": {
+      "version": "0.30.5",
+      "resolved": "https://registry.npmjs.org/magic-string/-/magic-string-0.30.5.tgz",
+      "integrity": "sha512-7xlpfBaQaP/T6Vh8MO/EqXSW5En6INHEvEXQiuff7Gku0PWjU3uf6w/j9o7O+SpB5fOAkrI5HeoNgwjEO0pFsA==",
+      "dependencies": {
+        "@jridgewell/sourcemap-codec": "^1.4.15"
+      },
+      "engines": {
+        "node": ">=12"
+      }
+    },
     "node_modules/make-dir": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/make-dir/-/make-dir-3.1.0.tgz",
@@ -5162,6 +5241,11 @@
         "tmpl": "1.0.5"
       }
     },
+    "node_modules/mdn-data": {
+      "version": "2.0.30",
+      "resolved": "https://registry.npmjs.org/mdn-data/-/mdn-data-2.0.30.tgz",
+      "integrity": "sha512-GaqWWShW4kv/G9IEucWScBx9G1/vsFZZJUO+tD26M8J8z3Kw5RDQjaoZe03YAClgeS/SWPOcb4nkFBTEi5DUEA=="
+    },
     "node_modules/media-typer": {
       "version": "0.3.0",
       "resolved": "https://registry.npmjs.org/media-typer/-/media-typer-0.3.0.tgz",
@@ -5674,6 +5758,16 @@
       "resolved": "https://registry.npmjs.org/pend/-/pend-1.2.0.tgz",
       "integrity": "sha512-F3asv42UuXchdzt+xXqfW1OGlVBe+mxa2mqI0pg5yAHZPvFmY3Y6drSf/GQ1A86WgWEN9Kzh/WrgKa6iGcHXLg=="
     },
+    "node_modules/periscopic": {
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/periscopic/-/periscopic-3.1.0.tgz",
+      "integrity": "sha512-vKiQ8RRtkl9P+r/+oefh25C3fhybptkHKCZSPlcXiJux2tJF55GnEj3BVn4A5gKfq9NWWXXrxkHBwVPUfH0opw==",
+      "dependencies": {
+        "@types/estree": "^1.0.0",
+        "estree-walker": "^3.0.0",
+        "is-reference": "^3.0.0"
+      }
+    },
     "node_modules/picocolors": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/picocolors/-/picocolors-1.0.0.tgz",
@@ -7333,7 +7427,6 @@
       "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"
       }
@@ -7492,11 +7585,26 @@
       }
     },
     "node_modules/svelte": {
-      "version": "3.59.2",
-      "resolved": "https://registry.npmjs.org/svelte/-/svelte-3.59.2.tgz",
-      "integrity": "sha512-vzSyuGr3eEoAtT/A6bmajosJZIUWySzY2CzB3w2pgPvnkUjGqlDnsNnA0PMO+mMAhuyMul6C2uuZzY6ELSkzyA==",
-      "engines": {
-        "node": ">= 8"
+      "version": "4.2.8",
+      "resolved": "https://registry.npmjs.org/svelte/-/svelte-4.2.8.tgz",
+      "integrity": "sha512-hU6dh1MPl8gh6klQZwK/n73GiAHiR95IkFsesLPbMeEZi36ydaXL/ZAb4g9sayT0MXzpxyZjR28yderJHxcmYA==",
+      "dependencies": {
+        "@ampproject/remapping": "^2.2.1",
+        "@jridgewell/sourcemap-codec": "^1.4.15",
+        "@jridgewell/trace-mapping": "^0.3.18",
+        "acorn": "^8.9.0",
+        "aria-query": "^5.3.0",
+        "axobject-query": "^3.2.1",
+        "code-red": "^1.0.3",
+        "css-tree": "^2.3.1",
+        "estree-walker": "^3.0.3",
+        "is-reference": "^3.0.1",
+        "locate-character": "^3.0.0",
+        "magic-string": "^0.30.4",
+        "periscopic": "^3.1.0"
+      },
+      "engines": {
+        "node": ">=16"
       }
     },
     "node_modules/svelte-dev-helper": {
diff --git a/templates/mellow-svelte/package.json b/templates/mellow-svelte/package.json
index 08b73c69..525bbdea 100644
--- a/templates/mellow-svelte/package.json
+++ b/templates/mellow-svelte/package.json
@@ -13,7 +13,7 @@
     "sails": "^1.5.2",
     "sails-hook-orm": "^4.0.0",
     "sails-hook-sockets": "^2.0.0",
-    "svelte": "^3.48.0",
+    "svelte": "^4.2.8",
     "webpack": "^5.72.1"
   },
   "devDependencies": {