diff --git a/npm-packages/eslint-plugin-meteor/scripts/dev-bundle-tool-package.js b/npm-packages/eslint-plugin-meteor/scripts/dev-bundle-tool-package.js
index 09adbc5e91..3b7b26ed0a 100644
--- a/npm-packages/eslint-plugin-meteor/scripts/dev-bundle-tool-package.js
+++ b/npm-packages/eslint-plugin-meteor/scripts/dev-bundle-tool-package.js
@@ -14,7 +14,7 @@ var packageJson = {
     pacote: "https://github.com/meteor/pacote/tarball/a81b0324686e85d22c7688c47629d4009000e8b8",
     "node-gyp": "9.4.0",
     "@mapbox/node-pre-gyp": "1.0.11",
-    typescript: "5.4.5",
+    typescript: "5.6.3",
     "@meteorjs/babel": "7.19.0-beta.3",
     "@meteorjs/reify": "0.24.0",
     // So that Babel can emit require("@babel/runtime/helpers/...") calls.
diff --git a/packages/typescript/package.js b/packages/typescript/package.js
index 0e93a37a43..ea41a3604a 100644
--- a/packages/typescript/package.js
+++ b/packages/typescript/package.js
@@ -1,6 +1,6 @@
 Package.describe({
   name: 'typescript',
-  version: '5.4.3',
+  version: '5.6.3',
   summary:
     'Compiler plugin that compiles TypeScript and ECMAScript in .ts and .tsx files',
   documentation: 'README.md',
diff --git a/scripts/dev-bundle-tool-package.js b/scripts/dev-bundle-tool-package.js
index 45d7d30d3f..3ea1b510f8 100644
--- a/scripts/dev-bundle-tool-package.js
+++ b/scripts/dev-bundle-tool-package.js
@@ -13,7 +13,7 @@ var packageJson = {
     npm: "10.8.3",
     "node-gyp": "9.4.0",
     "@mapbox/node-pre-gyp": "1.0.11",
-    typescript: "5.4.5",
+    typescript: "5.6.3",
     "@meteorjs/babel": "7.20.0-beta.5",
     // Keep the versions of these packages consistent with the versions
     // found in dev-bundle-server-package.js.