diff --git a/packages/gatsby-plugin-purgecss/package.json b/packages/gatsby-plugin-purgecss/package.json
index d946ca15..817afd92 100644
--- a/packages/gatsby-plugin-purgecss/package.json
+++ b/packages/gatsby-plugin-purgecss/package.json
@@ -16,7 +16,7 @@
     "coveralls": "^3.1.1",
     "eslint": "^8.31.0",
     "eslint-config-good-code": "^1.1.0",
-    "eslint-plugin-sonarjs": "^0.20.0",
+    "eslint-plugin-sonarjs": "^0.21.0",
     "eslint-plugin-unicorn": "^48.0.0",
     "execa": "^8.0.0",
     "gatsby": "^5.3.3",
diff --git a/yarn.lock b/yarn.lock
index 20b38e54..cbeb2a61 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -7919,12 +7919,12 @@ __metadata:
   languageName: node
   linkType: hard
 
-"eslint-plugin-sonarjs@npm:^0.20.0":
-  version: 0.20.0
-  resolution: "eslint-plugin-sonarjs@npm:0.20.0"
+"eslint-plugin-sonarjs@npm:^0.21.0":
+  version: 0.21.0
+  resolution: "eslint-plugin-sonarjs@npm:0.21.0"
   peerDependencies:
     eslint: ^5.0.0 || ^6.0.0 || ^7.0.0 || ^8.0.0
-  checksum: 98eabeff0d5a684f03b55be9c2888f52e169b991e87154f1210e5ca3c05ba5f9957067c9fd1177236211dc7b7efbadf9c1db7c0e650228c4d94d2728b279428e
+  checksum: c4d9de638a9ea6cc604355b02bc76819f811a3e20eb19bfc5741e3ad959721b573c9808b47e6aea4a6ce2d32101f42f2237f4d9c53230615c34afbf4ed6f69ea
   languageName: node
   linkType: hard
 
@@ -9161,7 +9161,7 @@ __metadata:
     coveralls: ^3.1.1
     eslint: ^8.31.0
     eslint-config-good-code: ^1.1.0
-    eslint-plugin-sonarjs: ^0.20.0
+    eslint-plugin-sonarjs: ^0.21.0
     eslint-plugin-unicorn: ^48.0.0
     execa: ^8.0.0
     fs-extra: ^11.1.0