diff --git a/tools/dev-tool/package.json b/tools/dev-tool/package.json
index e93eb7da62..d34e1e2d98 100644
--- a/tools/dev-tool/package.json
+++ b/tools/dev-tool/package.json
@@ -36,6 +36,6 @@
     "typescript": "^5.6.3",
     "webpack": "^5.90.0",
     "webpack-cli": "^5.1.4",
-    "webpack-merge": "^5.10.0"
+    "webpack-merge": "^6.0.1"
   }
 }
diff --git a/yarn.lock b/yarn.lock
index 6ded0a075c..00b3eeba17 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3681,7 +3681,7 @@ __metadata:
     typescript: "npm:^5.6.3"
     webpack: "npm:^5.90.0"
     webpack-cli: "npm:^5.1.4"
-    webpack-merge: "npm:^5.10.0"
+    webpack-merge: "npm:^6.0.1"
   bin:
     sumi: ./cli/index.js
   languageName: unknown
@@ -24996,7 +24996,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"webpack-merge@npm:^5.10.0, webpack-merge@npm:^5.7.3":
+"webpack-merge@npm:^5.7.3":
   version: 5.10.0
   resolution: "webpack-merge@npm:5.10.0"
   dependencies:
@@ -25007,6 +25007,17 @@ __metadata:
   languageName: node
   linkType: hard
 
+"webpack-merge@npm:^6.0.1":
+  version: 6.0.1
+  resolution: "webpack-merge@npm:6.0.1"
+  dependencies:
+    clone-deep: "npm:^4.0.1"
+    flat: "npm:^5.0.2"
+    wildcard: "npm:^2.0.1"
+  checksum: 10/39ab911c26237922295d9b3d0617c8ea0c438c35a3b21b05506616a10423f5ece1962bccbedec932c5db61af57999b6d055d56d1f1755c63e2701bd4a55c3887
+  languageName: node
+  linkType: hard
+
 "webpack-sources@npm:^1.1.0":
   version: 1.4.3
   resolution: "webpack-sources@npm:1.4.3"
@@ -25192,7 +25203,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"wildcard@npm:^2.0.0":
+"wildcard@npm:^2.0.0, wildcard@npm:^2.0.1":
   version: 2.0.1
   resolution: "wildcard@npm:2.0.1"
   checksum: 10/e0c60a12a219e4b12065d1199802d81c27b841ed6ad6d9d28240980c73ceec6f856771d575af367cbec2982d9ae7838759168b551776577f155044f5a5ba843c