diff --git a/shell/platform/fuchsia/dart/BUILD.gn b/shell/platform/fuchsia/dart/BUILD.gn
index 9fccac301d897..a1315a738c19a 100644
--- a/shell/platform/fuchsia/dart/BUILD.gn
+++ b/shell/platform/fuchsia/dart/BUILD.gn
@@ -127,7 +127,7 @@ dart_library("args") {
   package_root = "//third_party/dart/third_party/pkg/args"
   package_name = "args"
 
-  language_version = "2.12"
+  language_version = "2.18"
 
   deps = []