diff --git a/lib/metalsmith.js b/lib/metalsmith.js
index 104381f811..c960de3198 100644
--- a/lib/metalsmith.js
+++ b/lib/metalsmith.js
@@ -215,7 +215,8 @@ module.exports = metalsmith
       default: 'layout.njk',
       directory: join(paths.views, 'layouts'),
       pattern: '**/*.html',
-      engineOptions: nunjucksOptions
+      engineOptions: nunjucksOptions,
+      transform: 'nunjucks'
     })
   )
 
diff --git a/package-lock.json b/package-lock.json
index ec2b0f7d44..25d8e605e3 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -19,11 +19,11 @@
         "@babel/core": "^7.26.10",
         "@babel/preset-env": "^7.26.9",
         "@metalsmith/in-place": "^5.0.0",
-        "@metalsmith/layouts": "^2.7.0",
+        "@metalsmith/layouts": "^3.0.0",
         "@metalsmith/markdown": "^1.10.0",
         "@metalsmith/permalinks": "^3.2.0",
         "@metalsmith/postcss": "^5.4.1",
-        "@metalsmith/sass": "^1.11.0",
+        "@metalsmith/sass": "^1.12.0",
         "@rollup/plugin-babel": "^6.0.4",
         "@rollup/plugin-commonjs": "^28.0.2",
         "@rollup/plugin-node-resolve": "^16.0.0",
@@ -2779,17 +2779,17 @@
       }
     },
     "node_modules/@metalsmith/layouts": {
-      "version": "2.7.0",
-      "resolved": "https://registry.npmjs.org/@metalsmith/layouts/-/layouts-2.7.0.tgz",
-      "integrity": "sha512-VG5ldPSsTxUvHqFQo0u5mjWtS2IUUOqYKHvWnEHKol1UhaXhhYBYSnG0D8kjk+XzGw+mWxNfv/JoAhg94filXA==",
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/@metalsmith/layouts/-/layouts-3.0.0.tgz",
+      "integrity": "sha512-5rOquSdfdQ9Nx++4gEIOZ8BDV0NuudthgV+itIJK/wgGRrFsmq2+3xQrbsX94oY73+KPJA5h638IU7Qp1nmTpQ==",
       "dev": true,
+      "license": "MIT",
       "dependencies": {
-        "inputformat-to-jstransformer": "^1.4.0",
         "is-utf8": "^0.2.1",
         "jstransformer": "^1.0.0"
       },
       "engines": {
-        "node": ">=12.0.0"
+        "node": ">=14.18.0"
       },
       "peerDependencies": {
         "metalsmith": "^2.4.1"
@@ -2855,12 +2855,13 @@
       }
     },
     "node_modules/@metalsmith/sass": {
-      "version": "1.11.0",
-      "resolved": "https://registry.npmjs.org/@metalsmith/sass/-/sass-1.11.0.tgz",
-      "integrity": "sha512-xKmdFwXyxThhi/SX0GA6j386U4PAb8rl2YF8tlJs281sqBP/uuMozlqP+tYAcDQ2rizck3JG9B0VPToxC1vU2A==",
+      "version": "1.12.0",
+      "resolved": "https://registry.npmjs.org/@metalsmith/sass/-/sass-1.12.0.tgz",
+      "integrity": "sha512-DBnKOw/NjHFvGKBLZyp2sQbvqZ3ZHiQhPsz32wW1Y/irF3Z+613Hkx3Ocd1Xq7ttYerbGaMonAdgfsnYdhd9YQ==",
       "dev": true,
+      "license": "LGPL-3.0-or-later",
       "dependencies": {
-        "sass": "^1.80.5"
+        "sass": "^1.85.0"
       },
       "engines": {
         "node": ">=14.18.0"
@@ -10238,18 +10239,6 @@
       "dev": true,
       "license": "ISC"
     },
-    "node_modules/inputformat-to-jstransformer": {
-      "version": "1.4.0",
-      "resolved": "https://registry.npmjs.org/inputformat-to-jstransformer/-/inputformat-to-jstransformer-1.4.0.tgz",
-      "integrity": "sha512-Ub+Wjb0mjaND4IS/GDvQ+TEyd1i9U4OdrF58mBY7QTYu8CK5K34DPV7mrvo/WQBJLj7UJWQc7QAmFb7CbQ5lLw==",
-      "dev": true,
-      "dependencies": {
-        "require-one": "^1.0.3"
-      },
-      "engines": {
-        "node": ">=4"
-      }
-    },
     "node_modules/internal-slot": {
       "version": "1.0.7",
       "resolved": "https://registry.npmjs.org/internal-slot/-/internal-slot-1.0.7.tgz",
@@ -15705,11 +15694,6 @@
         "node": ">=0.10.0"
       }
     },
-    "node_modules/require-one": {
-      "version": "1.0.3",
-      "dev": true,
-      "license": "MIT"
-    },
     "node_modules/requires-port": {
       "version": "1.0.0",
       "dev": true,
@@ -15994,13 +15978,14 @@
       "license": "MIT"
     },
     "node_modules/sass": {
-      "version": "1.80.6",
-      "resolved": "https://registry.npmjs.org/sass/-/sass-1.80.6.tgz",
-      "integrity": "sha512-ccZgdHNiBF1NHBsWvacvT5rju3y1d/Eu+8Ex6c21nHp2lZGLBEtuwc415QfiI1PJa1TpCo3iXwwSRjRpn2Ckjg==",
+      "version": "1.86.3",
+      "resolved": "https://registry.npmjs.org/sass/-/sass-1.86.3.tgz",
+      "integrity": "sha512-iGtg8kus4GrsGLRDLRBRHY9dNVA78ZaS7xr01cWnS7PEMQyFtTqBiyCrfpTYTZXRWM94akzckYjh8oADfFNTzw==",
       "dev": true,
+      "license": "MIT",
       "dependencies": {
         "chokidar": "^4.0.0",
-        "immutable": "^4.0.0",
+        "immutable": "^5.0.2",
         "source-map-js": ">=0.6.2 <2.0.0"
       },
       "bin": {
@@ -16066,7 +16051,9 @@
       }
     },
     "node_modules/sass/node_modules/immutable": {
-      "version": "4.0.0",
+      "version": "5.1.1",
+      "resolved": "https://registry.npmjs.org/immutable/-/immutable-5.1.1.tgz",
+      "integrity": "sha512-3jatXi9ObIsPGr3N5hGw/vWWcTkq6hUYhpQz4k0wLC+owqWi/LiugIw9x0EdNZ2yGedKN/HzePiBvaJRXa0Ujg==",
       "dev": true,
       "license": "MIT"
     },
diff --git a/package.json b/package.json
index e315bc2c30..e11bc505f0 100644
--- a/package.json
+++ b/package.json
@@ -45,11 +45,11 @@
     "@babel/core": "^7.26.10",
     "@babel/preset-env": "^7.26.9",
     "@metalsmith/in-place": "^5.0.0",
-    "@metalsmith/layouts": "^2.7.0",
+    "@metalsmith/layouts": "^3.0.0",
     "@metalsmith/markdown": "^1.10.0",
     "@metalsmith/permalinks": "^3.2.0",
     "@metalsmith/postcss": "^5.4.1",
-    "@metalsmith/sass": "^1.11.0",
+    "@metalsmith/sass": "^1.12.0",
     "@rollup/plugin-babel": "^6.0.4",
     "@rollup/plugin-commonjs": "^28.0.2",
     "@rollup/plugin-node-resolve": "^16.0.0",