diff --git a/ruby-gem/spec/dummy/package.json b/ruby-gem/spec/dummy/package.json
index 4b55823e0..7bb30688e 100644
--- a/ruby-gem/spec/dummy/package.json
+++ b/ruby-gem/spec/dummy/package.json
@@ -48,7 +48,7 @@
     "sass": "^1.93.2",
     "sass-loader": "^16.0.6",
     "set-state-compare": "^1.0.58",
-    "shakapacker": "8.2.0",
+    "shakapacker": "9.2.0",
     "stacktrace-parser": "^0.1.11",
     "stimulus": "^3.2.2",
     "style-loader": "^4.0.0",
diff --git a/ruby-gem/spec/dummy/yarn.lock b/ruby-gem/spec/dummy/yarn.lock
index c356389c8..958d4a9e4 100644
--- a/ruby-gem/spec/dummy/yarn.lock
+++ b/ruby-gem/spec/dummy/yarn.lock
@@ -4193,13 +4193,14 @@ setprototypeof@1.2.0:
   resolved "https://registry.yarnpkg.com/setprototypeof/-/setprototypeof-1.2.0.tgz#66c9a24a73f9fc28cbe66b09fed3d33dcaf1b424"
   integrity sha512-E5LDX7Wrp85Kil5bhZv46j8jOeboKq5JMmYM3gVGdGH8xFpPWXUMsNrlODCrkoxMEeNi/XZIwuRvY4XNwYMJpw==
 
-shakapacker@8.2.0:
-  version "8.2.0"
-  resolved "https://registry.yarnpkg.com/shakapacker/-/shakapacker-8.2.0.tgz#c7bed87b8be2ae565cfe616f68552be545c77e14"
-  integrity sha512-Ct7BFqJVnKbxdqCzG+ja7Q6LPt/PlB7sSVBfG5jsAvmVCADM05cuoNwEgYNjFGKbDzHAxUqy5XgoI9Y030+JKQ==
+shakapacker@9.2.0:
+  version "9.2.0"
+  resolved "https://registry.yarnpkg.com/shakapacker/-/shakapacker-9.2.0.tgz#130bbeef9e72f2bd7f8ce5b1316ca3c778201e97"
+  integrity sha512-eEjps0qlufHAFOYY1fixZaXkIXLOE+FgQdjwKHhARryHfv4KxYIZiSQTFU4I6BOEXaK32zkTfEXOdU46YQv2pg==
   dependencies:
     js-yaml "^4.1.0"
     path-complete-extname "^1.0.0"
+    webpack-merge "^5.8.0"
 
 shallow-clone@^3.0.0:
   version "3.0.1"
@@ -4686,6 +4687,15 @@ webpack-merge@6, webpack-merge@^6.0.1:
     flat "^5.0.2"
     wildcard "^2.0.1"
 
+webpack-merge@^5.8.0:
+  version "5.10.0"
+  resolved "https://registry.yarnpkg.com/webpack-merge/-/webpack-merge-5.10.0.tgz#a3ad5d773241e9c682803abf628d4cd62b8a4177"
+  integrity sha512-+4zXKdx7UnO+1jaN4l2lHVD+mFvnlZQP/6ljaJVb4SZiwIKeUnrT5l0gkT8z+n4hKpC+jpOv6O9R+gLtag7pSA==
+  dependencies:
+    clone-deep "^4.0.1"
+    flat "^5.0.2"
+    wildcard "^2.0.0"
+
 webpack-sources@^3.3.3:
   version "3.3.3"
   resolved "https://registry.yarnpkg.com/webpack-sources/-/webpack-sources-3.3.3.tgz#d4bf7f9909675d7a070ff14d0ef2a4f3c982c723"
@@ -4751,7 +4761,7 @@ which@^2.0.1:
   dependencies:
     isexe "^2.0.0"
 
-wildcard@^2.0.1:
+wildcard@^2.0.0, wildcard@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/wildcard/-/wildcard-2.0.1.tgz#5ab10d02487198954836b6349f74fff961e10f67"
   integrity sha512-CC1bOL87PIWSBhDcTrdeLo6eGT7mCFtrg0uIJtqJUFyK+eJnzl8A1niH56uu7KMa5XFrtiV+AQuHO3n7DsHnLQ==