diff --git a/package-lock.json b/package-lock.json
index c874e15..469e1f8 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "source-map-support",
-  "version": "0.5.20",
+  "version": "0.5.21",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index 4485d74..48ee1fd 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "source-map-support",
   "description": "Fixes stack traces for files with source maps",
-  "version": "0.5.20",
+  "version": "0.5.21",
   "main": "./source-map-support.js",
   "scripts": {
     "build": "node build.js",