diff --git a/vscode-testextension/package-lock.json b/vscode-testextension/package-lock.json
index a3b636974..994ea38e9 100644
--- a/vscode-testextension/package-lock.json
+++ b/vscode-testextension/package-lock.json
@@ -309,9 +309,9 @@
             }
         },
         "typescript": {
-            "version": "3.9.10",
-            "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.9.10.tgz",
-            "integrity": "sha512-w6fIxVE/H1PkLKcCPsFqKE7Kv7QUwhU8qQY2MueZXWx5cPZdwFupLgKK3vntcK98BtNHZtAF4LA/yl2a7k8R6Q==",
+            "version": "4.9.5",
+            "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.9.5.tgz",
+            "integrity": "sha512-1FXk9E2Hm+QzZQ7z+McJiHL4NW1F2EzMu9Nq9i3zAaGqibafqYwCVU6WyWAuyQRRzOlxou8xZSyXLEN8oKj24g==",
             "dev": true
         },
         "vscode": {
diff --git a/vscode-testextension/package.json b/vscode-testextension/package.json
index fb7291b4a..b2d7052bc 100644
--- a/vscode-testextension/package.json
+++ b/vscode-testextension/package.json
@@ -48,7 +48,7 @@
     "devDependencies": {
         "@types/mocha": "8.0.0",
         "@types/node": "14.0.25",
-        "typescript": "3.9.10",
+        "typescript": "4.9.5",
         "vscode": "1.1.37"
     },
     "dependencies": {