diff --git a/package-lock.json b/package-lock.json
index af9bfb8..f9249e8 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -433,6 +433,167 @@
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+      "dev": true,
+      "optional": true
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+      "resolved": "https://registry.npmjs.org/@esbuild/android-arm64/-/android-arm64-0.21.0.tgz",
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+      "dev": true,
+      "optional": true
+    },
+    "@esbuild/android-x64": {
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+      "resolved": "https://registry.npmjs.org/@esbuild/android-x64/-/android-x64-0.21.0.tgz",
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+      "dev": true,
+      "optional": true
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+    "@esbuild/darwin-arm64": {
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+      "resolved": "https://registry.npmjs.org/@esbuild/linux-arm/-/linux-arm-0.21.0.tgz",
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+      "dev": true,
+      "optional": true
+    },
+    "@esbuild/linux-s390x": {
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+      "resolved": "https://registry.npmjs.org/@esbuild/linux-s390x/-/linux-s390x-0.21.0.tgz",
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+      "optional": true
+    },
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+      "resolved": "https://registry.npmjs.org/@esbuild/linux-x64/-/linux-x64-0.21.0.tgz",
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+      "dev": true,
+      "optional": true
+    },
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+      "version": "0.21.0",
+      "resolved": "https://registry.npmjs.org/@esbuild/netbsd-x64/-/netbsd-x64-0.21.0.tgz",
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+      "dev": true,
+      "optional": true
+    },
+    "@esbuild/openbsd-x64": {
+      "version": "0.21.0",
+      "resolved": "https://registry.npmjs.org/@esbuild/openbsd-x64/-/openbsd-x64-0.21.0.tgz",
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+      "dev": true,
+      "optional": true
+    },
+    "@esbuild/sunos-x64": {
+      "version": "0.21.0",
+      "resolved": "https://registry.npmjs.org/@esbuild/sunos-x64/-/sunos-x64-0.21.0.tgz",
+      "integrity": "sha512-3qAZFC752nZZQOI+OG4KIawvLfdD5yMFCeIFz0OhedMpYgq9AOKygW45Ojy0E5upBqns2fUaMFk1CnNSkvJaYw==",
+      "dev": true,
+      "optional": true
+    },
+    "@esbuild/win32-arm64": {
+      "version": "0.21.0",
+      "resolved": "https://registry.npmjs.org/@esbuild/win32-arm64/-/win32-arm64-0.21.0.tgz",
+      "integrity": "sha512-06BY4wjQQ2bPjayuvKWXr5X3V+ZGnoTOX1+doLoQBUSyCDb9JZgX7o0N3t3rRNmEiMY/DuxXwu+EE+U32B4ErA==",
+      "dev": true,
+      "optional": true
+    },
+    "@esbuild/win32-ia32": {
+      "version": "0.21.0",
+      "resolved": "https://registry.npmjs.org/@esbuild/win32-ia32/-/win32-ia32-0.21.0.tgz",
+      "integrity": "sha512-uTLz9mPOMkl3bfuGnSQumrUN7U1aPb8MCOdjQJOWPGdXTZhkK6Z2lLHxdTjX6C51jxXWWAo64tcRwiAYOkQhJw==",
+      "dev": true,
+      "optional": true
+    },
+    "@esbuild/win32-x64": {
+      "version": "0.21.0",
+      "resolved": "https://registry.npmjs.org/@esbuild/win32-x64/-/win32-x64-0.21.0.tgz",
+      "integrity": "sha512-XT0oCVNRjmrMTz/Xd+9L2eOI83gUQZg9Viiv3cuT/8VNlXVMn6QsxyBMDNFsYX+wmQRD31VMKNtkZaXvS3/JiA==",
+      "dev": true,
+      "optional": true
+    },
     "@istanbuljs/load-nyc-config": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/@istanbuljs/load-nyc-config/-/load-nyc-config-1.1.0.tgz",
@@ -1579,10 +1740,35 @@
       }
     },
     "esbuild": {
-      "version": "0.12.1",
-      "resolved": "https://registry.npmjs.org/esbuild/-/esbuild-0.12.1.tgz",
-      "integrity": "sha512-WfQ00MKm/Y4ysz1u9PCUAsV66k5lbrcEvS6aG9jhBIavpB94FBdaWeBkaZXxCZB4w+oqh+j4ozJFWnnFprOXbg==",
-      "dev": true
+      "version": "0.21.0",
+      "resolved": "https://registry.npmjs.org/esbuild/-/esbuild-0.21.0.tgz",
+      "integrity": "sha512-eyK64lASNug3Wo2+bQEBnYngjh9rkXUfOus403+OeVZteMon6moIhcEYbrSvcgBN6RsrRWCMoWcKDDK6UEsTOQ==",
+      "dev": true,
+      "requires": {
+        "@esbuild/aix-ppc64": "0.21.0",
+        "@esbuild/android-arm": "0.21.0",
+        "@esbuild/android-arm64": "0.21.0",
+        "@esbuild/android-x64": "0.21.0",
+        "@esbuild/darwin-arm64": "0.21.0",
+        "@esbuild/darwin-x64": "0.21.0",
+        "@esbuild/freebsd-arm64": "0.21.0",
+        "@esbuild/freebsd-x64": "0.21.0",
+        "@esbuild/linux-arm": "0.21.0",
+        "@esbuild/linux-arm64": "0.21.0",
+        "@esbuild/linux-ia32": "0.21.0",
+        "@esbuild/linux-loong64": "0.21.0",
+        "@esbuild/linux-mips64el": "0.21.0",
+        "@esbuild/linux-ppc64": "0.21.0",
+        "@esbuild/linux-riscv64": "0.21.0",
+        "@esbuild/linux-s390x": "0.21.0",
+        "@esbuild/linux-x64": "0.21.0",
+        "@esbuild/netbsd-x64": "0.21.0",
+        "@esbuild/openbsd-x64": "0.21.0",
+        "@esbuild/sunos-x64": "0.21.0",
+        "@esbuild/win32-arm64": "0.21.0",
+        "@esbuild/win32-ia32": "0.21.0",
+        "@esbuild/win32-x64": "0.21.0"
+      }
     },
     "escalade": {
       "version": "3.1.1",
diff --git a/package.json b/package.json
index f41cfb0..94d6aeb 100644
--- a/package.json
+++ b/package.json
@@ -22,7 +22,7 @@
   "devDependencies": {
     "@types/jest": "^26.0.23",
     "@types/node": "^15.0.1",
-    "esbuild": "0.12.1",
+    "esbuild": "0.21.0",
     "jest": "^26.6.3",
     "prettier": "2.3.0",
     "ts-jest": "^26.5.5"