diff --git a/package.json b/package.json
index 28d2c12b..645bda03 100644
--- a/package.json
+++ b/package.json
@@ -50,6 +50,6 @@
     "prettier": "2.2.1",
     "rimraf": "^3.0.2",
     "ts-jest": "25.5.1",
-    "typescript": "3.9.9"
+    "typescript": "4.1.5"
   }
 }
diff --git a/yarn.lock b/yarn.lock
index 3936abe5..6d0038ab 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4718,10 +4718,10 @@ typedarray-to-buffer@^3.1.5:
   dependencies:
     is-typedarray "^1.0.0"
 
-typescript@3.9.9:
-  version "3.9.9"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.9.9.tgz#e69905c54bc0681d0518bd4d587cc6f2d0b1a674"
-  integrity sha512-kdMjTiekY+z/ubJCATUPlRDl39vXYiMV9iyeMuEuXZh2we6zz80uovNN2WlAxmmdE/Z/YQe+EbOEXB5RHEED3w==
+typescript@4.1.5:
+  version "4.1.5"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.1.5.tgz#123a3b214aaff3be32926f0d8f1f6e704eb89a72"
+  integrity sha512-6OSu9PTIzmn9TCDiovULTnET6BgXtDYL4Gg4szY+cGsc3JP1dQL8qvE8kShTRx1NIw4Q9IBHlwODjkjWEtMUyA==
 
 union-value@^1.0.0:
   version "1.0.1"