diff --git a/.changeset/renovate-7b61228.md b/.changeset/renovate-7b61228.md
new file mode 100644
index 0000000000..74794c2155
--- /dev/null
+++ b/.changeset/renovate-7b61228.md
@@ -0,0 +1,6 @@
+---
+'@backstage/cli': patch
+'@backstage/plugin-scaffolder-backend': patch
+---
+
+Updated dependency `esbuild` to `^0.21.0`.
diff --git a/packages/cli/package.json b/packages/cli/package.json
index bdaf29bc13..7de4a7ebe0 100644
--- a/packages/cli/package.json
+++ b/packages/cli/package.json
@@ -90,7 +90,7 @@
     "css-loader": "^6.5.1",
     "ctrlc-windows": "^2.1.0",
     "diff": "^5.0.0",
-    "esbuild": "^0.20.0",
+    "esbuild": "^0.21.0",
     "esbuild-loader": "^4.0.0",
     "eslint": "^8.6.0",
     "eslint-config-prettier": "^9.0.0",
diff --git a/plugins/scaffolder-backend/package.json b/plugins/scaffolder-backend/package.json
index 4060529421..e4d5f3f10f 100644
--- a/plugins/scaffolder-backend/package.json
+++ b/plugins/scaffolder-backend/package.json
@@ -120,7 +120,7 @@
     "@types/nunjucks": "^3.1.4",
     "@types/supertest": "^2.0.8",
     "@types/zen-observable": "^0.8.0",
-    "esbuild": "^0.20.0",
+    "esbuild": "^0.21.0",
     "strip-ansi": "^7.1.0",
     "supertest": "^6.1.3",
     "wait-for-expect": "^3.0.2"
diff --git a/yarn.lock b/yarn.lock
index 1ab7e9339b..54cab47dcc 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3930,7 +3930,7 @@ __metadata:
     ctrlc-windows: ^2.1.0
     del: ^7.0.0
     diff: ^5.0.0
-    esbuild: ^0.20.0
+    esbuild: ^0.21.0
     esbuild-loader: ^4.0.0
     eslint: ^8.6.0
     eslint-config-prettier: ^9.0.0
@@ -7117,7 +7117,7 @@ __metadata:
     "@types/supertest": ^2.0.8
     "@types/zen-observable": ^0.8.0
     concat-stream: ^2.0.0
-    esbuild: ^0.20.0
+    esbuild: ^0.21.0
     express: ^4.17.1
     express-promise-router: ^4.1.0
     fs-extra: ^11.2.0
@@ -8812,6 +8812,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@esbuild/aix-ppc64@npm:0.21.5":
+  version: 0.21.5
+  resolution: "@esbuild/aix-ppc64@npm:0.21.5"
+  conditions: os=aix & cpu=ppc64
+  languageName: node
+  linkType: hard
+
 "@esbuild/android-arm64@npm:0.18.20":
   version: 0.18.20
   resolution: "@esbuild/android-arm64@npm:0.18.20"
@@ -8826,6 +8833,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@esbuild/android-arm64@npm:0.21.5":
+  version: 0.21.5
+  resolution: "@esbuild/android-arm64@npm:0.21.5"
+  conditions: os=android & cpu=arm64
+  languageName: node
+  linkType: hard
+
 "@esbuild/android-arm@npm:0.18.20":
   version: 0.18.20
   resolution: "@esbuild/android-arm@npm:0.18.20"
@@ -8840,6 +8854,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@esbuild/android-arm@npm:0.21.5":
+  version: 0.21.5
+  resolution: "@esbuild/android-arm@npm:0.21.5"
+  conditions: os=android & cpu=arm
+  languageName: node
+  linkType: hard
+
 "@esbuild/android-x64@npm:0.18.20":
   version: 0.18.20
   resolution: "@esbuild/android-x64@npm:0.18.20"
@@ -8854,6 +8875,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@esbuild/android-x64@npm:0.21.5":
+  version: 0.21.5
+  resolution: "@esbuild/android-x64@npm:0.21.5"
+  conditions: os=android & cpu=x64
+  languageName: node
+  linkType: hard
+
 "@esbuild/darwin-arm64@npm:0.18.20":
   version: 0.18.20
   resolution: "@esbuild/darwin-arm64@npm:0.18.20"
@@ -8868,6 +8896,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@esbuild/darwin-arm64@npm:0.21.5":
+  version: 0.21.5
+  resolution: "@esbuild/darwin-arm64@npm:0.21.5"
+  conditions: os=darwin & cpu=arm64
+  languageName: node
+  linkType: hard
+
 "@esbuild/darwin-x64@npm:0.18.20":
   version: 0.18.20
   resolution: "@esbuild/darwin-x64@npm:0.18.20"
@@ -8882,6 +8917,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@esbuild/darwin-x64@npm:0.21.5":
+  version: 0.21.5
+  resolution: "@esbuild/darwin-x64@npm:0.21.5"
+  conditions: os=darwin & cpu=x64
+  languageName: node
+  linkType: hard
+
 "@esbuild/freebsd-arm64@npm:0.18.20":
   version: 0.18.20
   resolution: "@esbuild/freebsd-arm64@npm:0.18.20"
@@ -8896,6 +8938,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@esbuild/freebsd-arm64@npm:0.21.5":
+  version: 0.21.5
+  resolution: "@esbuild/freebsd-arm64@npm:0.21.5"
+  conditions: os=freebsd & cpu=arm64
+  languageName: node
+  linkType: hard
+
 "@esbuild/freebsd-x64@npm:0.18.20":
   version: 0.18.20
   resolution: "@esbuild/freebsd-x64@npm:0.18.20"
@@ -8910,6 +8959,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@esbuild/freebsd-x64@npm:0.21.5":
+  version: 0.21.5
+  resolution: "@esbuild/freebsd-x64@npm:0.21.5"
+  conditions: os=freebsd & cpu=x64
+  languageName: node
+  linkType: hard
+
 "@esbuild/linux-arm64@npm:0.18.20":
   version: 0.18.20
   resolution: "@esbuild/linux-arm64@npm:0.18.20"
@@ -8924,6 +8980,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@esbuild/linux-arm64@npm:0.21.5":
+  version: 0.21.5
+  resolution: "@esbuild/linux-arm64@npm:0.21.5"
+  conditions: os=linux & cpu=arm64
+  languageName: node
+  linkType: hard
+
 "@esbuild/linux-arm@npm:0.18.20":
   version: 0.18.20
   resolution: "@esbuild/linux-arm@npm:0.18.20"
@@ -8938,6 +9001,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@esbuild/linux-arm@npm:0.21.5":
+  version: 0.21.5
+  resolution: "@esbuild/linux-arm@npm:0.21.5"
+  conditions: os=linux & cpu=arm
+  languageName: node
+  linkType: hard
+
 "@esbuild/linux-ia32@npm:0.18.20":
   version: 0.18.20
   resolution: "@esbuild/linux-ia32@npm:0.18.20"
@@ -8952,6 +9022,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@esbuild/linux-ia32@npm:0.21.5":
+  version: 0.21.5
+  resolution: "@esbuild/linux-ia32@npm:0.21.5"
+  conditions: os=linux & cpu=ia32
+  languageName: node
+  linkType: hard
+
 "@esbuild/linux-loong64@npm:0.18.20":
   version: 0.18.20
   resolution: "@esbuild/linux-loong64@npm:0.18.20"
@@ -8966,6 +9043,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@esbuild/linux-loong64@npm:0.21.5":
+  version: 0.21.5
+  resolution: "@esbuild/linux-loong64@npm:0.21.5"
+  conditions: os=linux & cpu=loong64
+  languageName: node
+  linkType: hard
+
 "@esbuild/linux-mips64el@npm:0.18.20":
   version: 0.18.20
   resolution: "@esbuild/linux-mips64el@npm:0.18.20"
@@ -8980,6 +9064,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@esbuild/linux-mips64el@npm:0.21.5":
+  version: 0.21.5
+  resolution: "@esbuild/linux-mips64el@npm:0.21.5"
+  conditions: os=linux & cpu=mips64el
+  languageName: node
+  linkType: hard
+
 "@esbuild/linux-ppc64@npm:0.18.20":
   version: 0.18.20
   resolution: "@esbuild/linux-ppc64@npm:0.18.20"
@@ -8994,6 +9085,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@esbuild/linux-ppc64@npm:0.21.5":
+  version: 0.21.5
+  resolution: "@esbuild/linux-ppc64@npm:0.21.5"
+  conditions: os=linux & cpu=ppc64
+  languageName: node
+  linkType: hard
+
 "@esbuild/linux-riscv64@npm:0.18.20":
   version: 0.18.20
   resolution: "@esbuild/linux-riscv64@npm:0.18.20"
@@ -9008,6 +9106,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@esbuild/linux-riscv64@npm:0.21.5":
+  version: 0.21.5
+  resolution: "@esbuild/linux-riscv64@npm:0.21.5"
+  conditions: os=linux & cpu=riscv64
+  languageName: node
+  linkType: hard
+
 "@esbuild/linux-s390x@npm:0.18.20":
   version: 0.18.20
   resolution: "@esbuild/linux-s390x@npm:0.18.20"
@@ -9022,6 +9127,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@esbuild/linux-s390x@npm:0.21.5":
+  version: 0.21.5
+  resolution: "@esbuild/linux-s390x@npm:0.21.5"
+  conditions: os=linux & cpu=s390x
+  languageName: node
+  linkType: hard
+
 "@esbuild/linux-x64@npm:0.18.20":
   version: 0.18.20
   resolution: "@esbuild/linux-x64@npm:0.18.20"
@@ -9036,6 +9148,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@esbuild/linux-x64@npm:0.21.5":
+  version: 0.21.5
+  resolution: "@esbuild/linux-x64@npm:0.21.5"
+  conditions: os=linux & cpu=x64
+  languageName: node
+  linkType: hard
+
 "@esbuild/netbsd-x64@npm:0.18.20":
   version: 0.18.20
   resolution: "@esbuild/netbsd-x64@npm:0.18.20"
@@ -9050,6 +9169,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@esbuild/netbsd-x64@npm:0.21.5":
+  version: 0.21.5
+  resolution: "@esbuild/netbsd-x64@npm:0.21.5"
+  conditions: os=netbsd & cpu=x64
+  languageName: node
+  linkType: hard
+
 "@esbuild/openbsd-x64@npm:0.18.20":
   version: 0.18.20
   resolution: "@esbuild/openbsd-x64@npm:0.18.20"
@@ -9064,6 +9190,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@esbuild/openbsd-x64@npm:0.21.5":
+  version: 0.21.5
+  resolution: "@esbuild/openbsd-x64@npm:0.21.5"
+  conditions: os=openbsd & cpu=x64
+  languageName: node
+  linkType: hard
+
 "@esbuild/sunos-x64@npm:0.18.20":
   version: 0.18.20
   resolution: "@esbuild/sunos-x64@npm:0.18.20"
@@ -9078,6 +9211,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@esbuild/sunos-x64@npm:0.21.5":
+  version: 0.21.5
+  resolution: "@esbuild/sunos-x64@npm:0.21.5"
+  conditions: os=sunos & cpu=x64
+  languageName: node
+  linkType: hard
+
 "@esbuild/win32-arm64@npm:0.18.20":
   version: 0.18.20
   resolution: "@esbuild/win32-arm64@npm:0.18.20"
@@ -9092,6 +9232,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@esbuild/win32-arm64@npm:0.21.5":
+  version: 0.21.5
+  resolution: "@esbuild/win32-arm64@npm:0.21.5"
+  conditions: os=win32 & cpu=arm64
+  languageName: node
+  linkType: hard
+
 "@esbuild/win32-ia32@npm:0.18.20":
   version: 0.18.20
   resolution: "@esbuild/win32-ia32@npm:0.18.20"
@@ -9106,6 +9253,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@esbuild/win32-ia32@npm:0.21.5":
+  version: 0.21.5
+  resolution: "@esbuild/win32-ia32@npm:0.21.5"
+  conditions: os=win32 & cpu=ia32
+  languageName: node
+  linkType: hard
+
 "@esbuild/win32-x64@npm:0.18.20":
   version: 0.18.20
   resolution: "@esbuild/win32-x64@npm:0.18.20"
@@ -9120,6 +9274,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@esbuild/win32-x64@npm:0.21.5":
+  version: 0.21.5
+  resolution: "@esbuild/win32-x64@npm:0.21.5"
+  conditions: os=win32 & cpu=x64
+  languageName: node
+  linkType: hard
+
 "@eslint-community/eslint-utils@npm:^4.2.0, @eslint-community/eslint-utils@npm:^4.4.0":
   version: 4.4.0
   resolution: "@eslint-community/eslint-utils@npm:4.4.0"
@@ -25993,6 +26154,86 @@ __metadata:
   languageName: node
   linkType: hard
 
+"esbuild@npm:^0.21.0":
+  version: 0.21.5
+  resolution: "esbuild@npm:0.21.5"
+  dependencies:
+    "@esbuild/aix-ppc64": 0.21.5
+    "@esbuild/android-arm": 0.21.5
+    "@esbuild/android-arm64": 0.21.5
+    "@esbuild/android-x64": 0.21.5
+    "@esbuild/darwin-arm64": 0.21.5
+    "@esbuild/darwin-x64": 0.21.5
+    "@esbuild/freebsd-arm64": 0.21.5
+    "@esbuild/freebsd-x64": 0.21.5
+    "@esbuild/linux-arm": 0.21.5
+    "@esbuild/linux-arm64": 0.21.5
+    "@esbuild/linux-ia32": 0.21.5
+    "@esbuild/linux-loong64": 0.21.5
+    "@esbuild/linux-mips64el": 0.21.5
+    "@esbuild/linux-ppc64": 0.21.5
+    "@esbuild/linux-riscv64": 0.21.5
+    "@esbuild/linux-s390x": 0.21.5
+    "@esbuild/linux-x64": 0.21.5
+    "@esbuild/netbsd-x64": 0.21.5
+    "@esbuild/openbsd-x64": 0.21.5
+    "@esbuild/sunos-x64": 0.21.5
+    "@esbuild/win32-arm64": 0.21.5
+    "@esbuild/win32-ia32": 0.21.5
+    "@esbuild/win32-x64": 0.21.5
+  dependenciesMeta:
+    "@esbuild/aix-ppc64":
+      optional: true
+    "@esbuild/android-arm":
+      optional: true
+    "@esbuild/android-arm64":
+      optional: true
+    "@esbuild/android-x64":
+      optional: true
+    "@esbuild/darwin-arm64":
+      optional: true
+    "@esbuild/darwin-x64":
+      optional: true
+    "@esbuild/freebsd-arm64":
+      optional: true
+    "@esbuild/freebsd-x64":
+      optional: true
+    "@esbuild/linux-arm":
+      optional: true
+    "@esbuild/linux-arm64":
+      optional: true
+    "@esbuild/linux-ia32":
+      optional: true
+    "@esbuild/linux-loong64":
+      optional: true
+    "@esbuild/linux-mips64el":
+      optional: true
+    "@esbuild/linux-ppc64":
+      optional: true
+    "@esbuild/linux-riscv64":
+      optional: true
+    "@esbuild/linux-s390x":
+      optional: true
+    "@esbuild/linux-x64":
+      optional: true
+    "@esbuild/netbsd-x64":
+      optional: true
+    "@esbuild/openbsd-x64":
+      optional: true
+    "@esbuild/sunos-x64":
+      optional: true
+    "@esbuild/win32-arm64":
+      optional: true
+    "@esbuild/win32-ia32":
+      optional: true
+    "@esbuild/win32-x64":
+      optional: true
+  bin:
+    esbuild: bin/esbuild
+  checksum: 2911c7b50b23a9df59a7d6d4cdd3a4f85855787f374dce751148dbb13305e0ce7e880dde1608c2ab7a927fc6cec3587b80995f7fc87a64b455f8b70b55fd8ec1
+  languageName: node
+  linkType: hard
+
 "esbuild@npm:esbuild-wasm@^0.15.15":
   version: 0.15.18
   resolution: "esbuild-wasm@npm:0.15.18"