diff --git a/package.json b/package.json
index 7317b59..429c566 100644
--- a/package.json
+++ b/package.json
@@ -37,7 +37,7 @@
     "remark-stringify": "7.0.4",
     "source-map-support": "0.5.21",
     "ts-node": "8.1.1",
-    "typescript": "3.3.3333",
+    "typescript": "3.3.4000",
     "unified": "7.1.0"
   },
   "dependencies": {
diff --git a/yarn.lock b/yarn.lock
index 222d174..95d16c9 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -7582,10 +7582,10 @@ typedarray@^0.0.6:
   resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
   integrity sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c=
 
-typescript@3.3.3333:
-  version "3.3.3333"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.3.3333.tgz#171b2c5af66c59e9431199117a3bcadc66fdcfd6"
-  integrity sha512-JjSKsAfuHBE/fB2oZ8NxtRTk5iGcg6hkYXMnZ3Wc+b2RSqejEqTaem11mHASMnFilHrax3sLK0GDzcJrekZYLw==
+typescript@3.3.4000:
+  version "3.3.4000"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.3.4000.tgz#76b0f89cfdbf97827e1112d64f283f1151d6adf0"
+  integrity sha512-jjOcCZvpkl2+z7JFn0yBOoLQyLoIkNZAs/fYJkUG6VKy6zLPHJGfQJYFHzibB6GJaF/8QrcECtlQ5cpvRHSMEA==
 
 uglify-js@^3.1.4:
   version "3.14.5"