diff --git a/lib/constants.js b/lib/constants.js
index 6e7c8db..75cce52 100644
--- a/lib/constants.js
+++ b/lib/constants.js
@@ -181,6 +181,12 @@ export const LANGUAGES = [
     name: 'JavaScript',
     mode: 'javascript'
   },
+  {
+    name: 'JSON',
+    mode: 'javascript',
+    mime: 'application/json',
+    short: 'json'
+  },
   {
     name: 'JSX',
     mode: 'jsx'
@@ -280,6 +286,12 @@ export const LANGUAGES = [
     name: 'TCL',
     mode: 'tcl'
   },
+  {
+    name: 'TypeScript',
+    mode: 'javascript',
+    mime: 'application/typescript',
+    short: 'typescript'
+  },
   {
     name: 'VB.NET',
     mode: 'vb'