diff --git a/package.json b/package.json
index f75dd93..45ce1e1 100644
--- a/package.json
+++ b/package.json
@@ -21,7 +21,7 @@
         "url": "https://github.com/cscott/texvcjs/issues"
     },
     "dependencies": {
-        "commander": "~2.9.0"
+        "commander": "~2.20.3"
     },
     "devDependencies": {
         "jshint": "~2.9.1",