diff --git a/extensions/ql-vscode/package-lock.json b/extensions/ql-vscode/package-lock.json
index 98bf7158855..281ee5896ff 100644
--- a/extensions/ql-vscode/package-lock.json
+++ b/extensions/ql-vscode/package-lock.json
@@ -138,7 +138,7 @@
         "ts-loader": "^8.1.0",
         "ts-node": "^10.7.0",
         "ts-protoc-gen": "^0.9.0",
-        "typescript": "^4.5.5",
+        "typescript": "^5.0.2",
         "webpack": "^5.76.0",
         "webpack-cli": "^5.0.1"
       },
@@ -39544,16 +39544,16 @@
       }
     },
     "node_modules/typescript": {
-      "version": "4.6.4",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.6.4.tgz",
-      "integrity": "sha512-9ia/jWHIEbo49HfjrLGfKbZSuWo9iTMwXO+Ca3pRsSpbsMbc7/IU8NKdCZVRRBafVPGnoJeFL76ZOAA84I9fEg==",
+      "version": "5.0.2",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.0.2.tgz",
+      "integrity": "sha512-wVORMBGO/FAs/++blGNeAVdbNKtIh1rbBL2EyQ1+J9lClJ93KiiKe8PmFIVdXhHcyv44SL9oglmfeSsndo0jRw==",
       "dev": true,
       "bin": {
         "tsc": "bin/tsc",
         "tsserver": "bin/tsserver"
       },
       "engines": {
-        "node": ">=4.2.0"
+        "node": ">=12.20"
       }
     },
     "node_modules/uc.micro": {
@@ -71789,9 +71789,9 @@
       }
     },
     "typescript": {
-      "version": "4.6.4",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.6.4.tgz",
-      "integrity": "sha512-9ia/jWHIEbo49HfjrLGfKbZSuWo9iTMwXO+Ca3pRsSpbsMbc7/IU8NKdCZVRRBafVPGnoJeFL76ZOAA84I9fEg==",
+      "version": "5.0.2",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.0.2.tgz",
+      "integrity": "sha512-wVORMBGO/FAs/++blGNeAVdbNKtIh1rbBL2EyQ1+J9lClJ93KiiKe8PmFIVdXhHcyv44SL9oglmfeSsndo0jRw==",
       "dev": true
     },
     "uc.micro": {
diff --git a/extensions/ql-vscode/package.json b/extensions/ql-vscode/package.json
index 24e1283b603..de4f60d4df8 100644
--- a/extensions/ql-vscode/package.json
+++ b/extensions/ql-vscode/package.json
@@ -1559,7 +1559,7 @@
     "ts-loader": "^8.1.0",
     "ts-node": "^10.7.0",
     "ts-protoc-gen": "^0.9.0",
-    "typescript": "^4.5.5",
+    "typescript": "^5.0.2",
     "webpack": "^5.76.0",
     "webpack-cli": "^5.0.1"
   },
diff --git a/extensions/ql-vscode/test/vscode-tests/jest-runner-installed-extensions.ts b/extensions/ql-vscode/test/vscode-tests/jest-runner-installed-extensions.ts
index 0c031b72d61..340e5e5f5f9 100644
--- a/extensions/ql-vscode/test/vscode-tests/jest-runner-installed-extensions.ts
+++ b/extensions/ql-vscode/test/vscode-tests/jest-runner-installed-extensions.ts
@@ -33,7 +33,7 @@ export default class JestRunnerInstalledExtensions extends VSCodeTestRunner {
           ?.config as RunnerOptions) ?? {};
 
       const { version, platform } = options;
-      const versionKey = `${version}-${platform}`;
+      const versionKey = `${version}-${platform}` as const;
 
       if (installedOnVsCodeVersions.has(versionKey)) {
         continue;