diff --git a/package-lock.json b/package-lock.json
index 4708a30..7d155dc 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -7,7 +7,7 @@
       "name": "mapfile-generator",
       "devDependencies": {
         "neostandard": "^0.12",
-        "sass": "^1.97",
+        "sass": "^1.98",
         "webpack-cli": "^6.0"
       }
     },
@@ -3981,9 +3981,9 @@
       }
     },
     "node_modules/immutable": {
-      "version": "5.1.1",
-      "resolved": "https://registry.npmjs.org/immutable/-/immutable-5.1.1.tgz",
-      "integrity": "sha512-3jatXi9ObIsPGr3N5hGw/vWWcTkq6hUYhpQz4k0wLC+owqWi/LiugIw9x0EdNZ2yGedKN/HzePiBvaJRXa0Ujg==",
+      "version": "5.1.5",
+      "resolved": "https://registry.npmjs.org/immutable/-/immutable-5.1.5.tgz",
+      "integrity": "sha512-t7xcm2siw+hlUM68I+UEOK+z84RzmN59as9DZ7P1l0994DKUWV7UXBMQZVxaoMSRQ+PBZbHCOoBt7a2wxOMt+A==",
       "dev": true,
       "license": "MIT"
     },
@@ -5737,14 +5737,14 @@
       "peer": true
     },
     "node_modules/sass": {
-      "version": "1.97.3",
-      "resolved": "https://registry.npmjs.org/sass/-/sass-1.97.3.tgz",
-      "integrity": "sha512-fDz1zJpd5GycprAbu4Q2PV/RprsRtKC/0z82z0JLgdytmcq0+ujJbJ/09bPGDxCLkKY3Np5cRAOcWiVkLXJURg==",
+      "version": "1.98.0",
+      "resolved": "https://registry.npmjs.org/sass/-/sass-1.98.0.tgz",
+      "integrity": "sha512-+4N/u9dZ4PrgzGgPlKnaaRQx64RO0JBKs9sDhQ2pLgN6JQZ25uPQZKQYaBJU48Kd5BxgXoJ4e09Dq7nMcOUW3A==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
         "chokidar": "^4.0.0",
-        "immutable": "^5.0.2",
+        "immutable": "^5.1.5",
         "source-map-js": ">=0.6.2 <2.0.0"
       },
       "bin": {
diff --git a/package.json b/package.json
index 58d2853..11346fe 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
   "name": "mapfile-generator",
   "devDependencies": {
     "neostandard": "^0.12",
-    "sass": "^1.97",
+    "sass": "^1.98",
     "webpack-cli": "^6.0"
   },
   "scripts": {