diff --git a/package.json b/package.json
index a6195e2..8b6a74f 100644
--- a/package.json
+++ b/package.json
@@ -36,7 +36,7 @@
     "@types/debug": "4.1.5",
     "@types/express": "4.17.6",
     "@types/node": "13.9.8",
-    "typescript": "3.9.5"
+    "typescript": "4.1.2"
   },
   "eslintConfig": {
     "extends": [
diff --git a/yarn.lock b/yarn.lock
index 2c5e226..d382ca8 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1336,10 +1336,10 @@ type-is@~1.6.17, type-is@~1.6.18:
     media-typer "0.3.0"
     mime-types "~2.1.24"
 
-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==
+typescript@4.1.2:
+  version "4.1.2"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.1.2.tgz#6369ef22516fe5e10304aae5a5c4862db55380e9"
+  integrity sha512-thGloWsGH3SOxv1SoY7QojKi0tc+8FnOmiarEGMbd/lar7QOEd3hvlx3Fp5y6FlDUGl9L+pd4n2e+oToGMmhRQ==
 
 unpipe@1.0.0, unpipe@~1.0.0:
   version "1.0.0"