diff --git a/html/package.json b/html/package.json
index 3ae6889..1a7c48b 100644
--- a/html/package.json
+++ b/html/package.json
@@ -54,7 +54,7 @@
     "ts-loader": "^7.0.4",
     "tslint": "^6.1.2",
     "tslint-loader": "^3.5.4",
-    "typescript": "^3.9.2",
+    "typescript": "^3.9.3",
     "webpack": "4.43.0",
     "webpack-cli": "^3.3.11",
     "webpack-dev-server": "^3.11.0",
diff --git a/html/yarn.lock b/html/yarn.lock
index e13a910..97c061b 100644
--- a/html/yarn.lock
+++ b/html/yarn.lock
@@ -7989,10 +7989,10 @@ typedarray@^0.0.6:
   resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
   integrity sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c=
 
-typescript@^3.9.2:
-  version "3.9.2"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.9.2.tgz#64e9c8e9be6ea583c54607677dd4680a1cf35db9"
-  integrity sha512-q2ktq4n/uLuNNShyayit+DTobV2ApPEo/6so68JaD5ojvc/6GClBipedB9zNWYxRSAlZXAe405Rlijzl6qDiSw==
+typescript@^3.9.3:
+  version "3.9.3"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.9.3.tgz#d3ac8883a97c26139e42df5e93eeece33d610b8a"
+  integrity sha512-D/wqnB2xzNFIcoBG9FG8cXRDjiqSTbG2wd8DMZeQyJlP1vfTkIxH4GKveWaEBYySKIg+USu+E+EDIR47SqnaMQ==
 
 unc-path-regex@^0.1.2:
   version "0.1.2"