diff --git a/package.json b/package.json
index 88d044b..1049446 100644
--- a/package.json
+++ b/package.json
@@ -84,7 +84,7 @@
         "ts-jest": "^24.0.2",
         "ts-loader": "^6.0.4",
         "ts-node": "^8.3.0",
-        "typescript": "~3.5.3",
+        "typescript": "~3.9.5",
         "wait-on": "^3.1.0",
         "webpack": "^4.38.0",
         "webpack-cli": "^3.3.6",
diff --git a/yarn.lock b/yarn.lock
index 860b6c3..43b3238 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -9188,10 +9188,10 @@ typescript-tuple@^2.2.1:
   dependencies:
     typescript-compare "^0.0.2"
 
-typescript@~3.5.3:
-  version "3.5.3"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.5.3.tgz#c830f657f93f1ea846819e929092f5fe5983e977"
-  integrity sha512-ACzBtm/PhXBDId6a6sDJfroT2pOWt/oOnk4/dElG5G33ZL776N3Y6/6bKZJBFpd+b05F3Ct9qDjMeJmRWtE2/g==
+typescript@~3.9.5:
+  version "3.9.5"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.9.5.tgz#586f0dba300cde8be52dd1ac4f7e1009c1b13f36"
+  integrity sha512-hSAifV3k+i6lEoCJ2k6R2Z/rp/H3+8sdmcn5NrS3/3kE7+RyZXm9aqvxWqjEXHAd8b0pShatpcdMTvEdvAJltQ==
 
 uglify-js@3.4.x:
   version "3.4.10"