diff --git a/package-lock.json b/package-lock.json
index 4868b45..769267a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "ycabal-sdk",
-  "version": "3.0.0",
+  "version": "3.0.2",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -4526,9 +4526,9 @@
       "dev": true
     },
     "typescript": {
-      "version": "3.9.7",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.9.7.tgz",
-      "integrity": "sha512-BLbiRkiBzAwsjut4x/dsibSTB6yWpwT5qWmC2OfuCg3GgVQCSgMs4vEctYPhsaGtd0AeuuHMkjZ2h2WG8MSzRw==",
+      "version": "4.2.4",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.2.4.tgz",
+      "integrity": "sha512-V+evlYHZnQkaz8TRBuxTA92yZBPotr5H+WhQ7bD3hZUndx5tGOa1fuCgeSjxAzM1RiN5IzvadIXTVefuuwZCRg==",
       "dev": true
     },
     "unicode-canonical-property-names-ecmascript": {
diff --git a/package.json b/package.json
index 9b2d5c8..9881411 100644
--- a/package.json
+++ b/package.json
@@ -42,7 +42,7 @@
     "rimraf": "^3.0.0",
     "rollup": "^2.41.3",
     "rollup-plugin-typescript2": "0.29.0",
-    "typescript": "^3.6.4"
+    "typescript": "^4.2.4"
   },
   "dependencies": {
     "crypto-es": "^1.2.2",