diff --git a/package.json b/package.json
index 6c37868..2eed9e6 100644
--- a/package.json
+++ b/package.json
@@ -12,6 +12,9 @@
     "Programming Languages"
   ],
   "main": "./out/extension.js",
+  "activationEvents": [
+    "onLanguage:gem5-slicc"
+  ],
   "capabilities": {
     "referencesProvider": "true"
   },
@@ -46,7 +49,7 @@
     "@commitlint/config-conventional": "^17.8.1",
     "@types/jest": "^29.5.8",
     "@types/mocha": "^10.0.4",
-    "@types/vscode": "^1.82.0",
+    "@types/vscode": "^1.71.0",
     "commitizen": "^4.3.0",
     "husky": "^8.0.3",
     "js-yaml": "^4.1.0",