diff --git a/tools/debug-ui/package-lock.json b/tools/debug-ui/package-lock.json
index 9605a0241e3..4aaf6c535e4 100644
--- a/tools/debug-ui/package-lock.json
+++ b/tools/debug-ui/package-lock.json
@@ -37,9 +37,9 @@
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     },
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-      "version": "4.0.1",
-      "resolved": "https://registry.npmjs.org/@adobe/css-tools/-/css-tools-4.0.1.tgz",
-      "integrity": "sha512-+u76oB43nOHrF4DDWRLWDCtci7f3QJoEBigemIdIeTi1ODqjx6Tad9NCVnPRwewWlKkVab5PlK8DCtPTyX7S8g==",
+      "version": "4.3.1",
+      "resolved": "https://registry.npmjs.org/@adobe/css-tools/-/css-tools-4.3.1.tgz",
+      "integrity": "sha512-/62yikz7NLScCGAAST5SHdnjaDJQBDq0M2muyRTpf2VQhw6StBg2ALiu73zSJQ4fMVLA+0uBhBHAle7Wg+2kSg==",
       "dev": true
     },
     "node_modules/@ampproject/remapping": {
@@ -18277,9 +18277,9 @@
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     "@adobe/css-tools": {
-      "version": "4.0.1",
-      "resolved": "https://registry.npmjs.org/@adobe/css-tools/-/css-tools-4.0.1.tgz",
-      "integrity": "sha512-+u76oB43nOHrF4DDWRLWDCtci7f3QJoEBigemIdIeTi1ODqjx6Tad9NCVnPRwewWlKkVab5PlK8DCtPTyX7S8g==",
+      "version": "4.3.1",
+      "resolved": "https://registry.npmjs.org/@adobe/css-tools/-/css-tools-4.3.1.tgz",
+      "integrity": "sha512-/62yikz7NLScCGAAST5SHdnjaDJQBDq0M2muyRTpf2VQhw6StBg2ALiu73zSJQ4fMVLA+0uBhBHAle7Wg+2kSg==",
       "dev": true
     },
     "@ampproject/remapping": {