diff --git a/extensions/ql-vscode/package-lock.json b/extensions/ql-vscode/package-lock.json
index 8b850659277..1720fe596fd 100644
--- a/extensions/ql-vscode/package-lock.json
+++ b/extensions/ql-vscode/package-lock.json
@@ -138,7 +138,7 @@
         "ts-node": "^10.9.2",
         "ts-unused-exports": "^11.0.1",
         "typescript": "^5.6.2",
-        "typescript-plugin-css-modules": "^5.1.0",
+        "typescript-plugin-css-modules": "^5.2.0",
         "vite": "^7.1.5",
         "vite-node": "^3.2.4"
       },
@@ -25563,6 +25563,7 @@
       "integrity": "sha512-v3YCf31atbwJQIMtPNX8hcQ+okD4NQaTuKGUWfII8eaqn+3otrbttGL1zSMZAAtiPsBztQnujVBugg/cXFUpyg==",
       "dev": true,
       "license": "MIT",
+      "optional": true,
       "dependencies": {
         "@adobe/css-tools": "~4.3.1",
         "debug": "^4.3.2",
@@ -25585,7 +25586,8 @@
       "resolved": "https://registry.npmjs.org/@adobe/css-tools/-/css-tools-4.3.3.tgz",
       "integrity": "sha512-rE0Pygv0sEZ4vBWHlAgJLGDU7Pm8xoO6p3wsEceb7GYAjScrOHpEo8KK/eVkAcnSM+slAEtXjA2JpdjLp4fJQQ==",
       "dev": true,
-      "license": "MIT"
+      "license": "MIT",
+      "optional": true
     },
     "node_modules/stylus/node_modules/glob": {
       "version": "7.2.3",
@@ -25594,6 +25596,7 @@
       "deprecated": "Glob versions prior to v9 are no longer supported",
       "dev": true,
       "license": "ISC",
+      "optional": true,
       "dependencies": {
         "fs.realpath": "^1.0.0",
         "inflight": "^1.0.4",
@@ -26928,9 +26931,9 @@
       }
     },
     "node_modules/typescript-plugin-css-modules": {
-      "version": "5.1.0",
-      "resolved": "https://registry.npmjs.org/typescript-plugin-css-modules/-/typescript-plugin-css-modules-5.1.0.tgz",
-      "integrity": "sha512-6h+sLBa4l+XYSTn/31vZHd/1c3SvAbLpobY6FxDiUOHJQG1eD9Gh3eCs12+Eqc+TCOAdxcO+zAPvUq0jBfdciw==",
+      "version": "5.2.0",
+      "resolved": "https://registry.npmjs.org/typescript-plugin-css-modules/-/typescript-plugin-css-modules-5.2.0.tgz",
+      "integrity": "sha512-c5pAU5d+m3GciDr/WhkFldz1NIEGBafuP/3xhFt9BEXS2gmn/LvjkoZ11vEBIuP8LkXfPNhOt1BUhM5efFuwOw==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
@@ -26948,9 +26951,11 @@
         "reserved-words": "^0.1.2",
         "sass": "^1.70.0",
         "source-map-js": "^1.0.2",
-        "stylus": "^0.62.0",
         "tsconfig-paths": "^4.2.0"
       },
+      "optionalDependencies": {
+        "stylus": "^0.62.0"
+      },
       "peerDependencies": {
         "typescript": ">=4.0.0"
       }
diff --git a/extensions/ql-vscode/package.json b/extensions/ql-vscode/package.json
index b9629571361..2c6c2940f01 100644
--- a/extensions/ql-vscode/package.json
+++ b/extensions/ql-vscode/package.json
@@ -2176,7 +2176,7 @@
     "ts-node": "^10.9.2",
     "ts-unused-exports": "^11.0.1",
     "typescript": "^5.6.2",
-    "typescript-plugin-css-modules": "^5.1.0",
+    "typescript-plugin-css-modules": "^5.2.0",
     "vite": "^7.1.5",
     "vite-node": "^3.2.4"
   },