diff --git a/package-lock.json b/package-lock.json
index 42b5bd92..ae82d1d0 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
  "name": "in-app-purchase",
- "version": "1.11.2",
+ "version": "1.11.3",
  "lockfileVersion": 1,
  "requires": true,
  "dependencies": {
@@ -859,9 +859,9 @@
    }
   },
   "jwt-simple": {
-   "version": "0.5.1",
-   "resolved": "https://registry.npmjs.org/jwt-simple/-/jwt-simple-0.5.1.tgz",
-   "integrity": "sha1-eeoBiRth3mto4T5nwLS1vak3spQ="
+   "version": "0.5.3",
+   "resolved": "https://registry.npmjs.org/jwt-simple/-/jwt-simple-0.5.3.tgz",
+   "integrity": "sha512-mGXp4PTJalEBh5WGe/Ow0P6g+Q4tM/9qAysX7YxCdB/xahDoBKrASZKf7hXT/qTREhOTPJvi4WWpabT2WXh1BQ=="
   },
   "levn": {
    "version": "0.3.0",
diff --git a/package.json b/package.json
index d626657e..9ac43776 100644
--- a/package.json
+++ b/package.json
@@ -11,7 +11,7 @@
   "url": "https://github.com/voltrue2/in-app-purchase.git"
  },
  "dependencies": {
-  "jwt-simple": "0.5.1",
+  "jwt-simple": "0.5.3",
   "request": "2.88.0",
   "xml-crypto": "0.10.1",
   "xmldom": "0.1.19"