diff --git a/package.json b/package.json
index d742a70a..3af16199 100644
--- a/package.json
+++ b/package.json
@@ -95,7 +95,7 @@
     "source-map-support": "^0.5.16",
     "ts-node": "^8.6.2",
     "tsconfig-paths": "^3.9.0",
-    "typescript": "3.8.3",
+    "typescript": "3.9.5",
     "universal-ledger-agent": "^0.1.2"
   },
   "dependencies": {
diff --git a/yarn.lock b/yarn.lock
index c713c9ee..a9f46a39 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -7474,10 +7474,10 @@ typedarray@^0.0.6:
   resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
   integrity sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c=
 
-typescript@3.8.3, typescript@^3.6.3:
-  version "3.8.3"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.8.3.tgz#409eb8544ea0335711205869ec458ab109ee1061"
-  integrity sha512-MYlEfn5VrLNsgudQTVJeNaQFUAI7DkhnOjdpAp4T+ku1TfQClewlbSuTVHiA+8skNBgaf02TL/kLOvig4y3G8w==
+typescript@3.9.5, typescript@^3.6.3:
+  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@^3.1.4:
   version "3.7.7"