diff --git a/languages.toml b/languages.toml
index 3fd8f14c..e4399540 100644
--- a/languages.toml
+++ b/languages.toml
@@ -2150,7 +2150,7 @@ indent = { tab-width = 2, unit = "  " }
 
 [[grammar]]
 name = "dart"
-source = { git = "https://github.com/UserNobody14/tree-sitter-dart", rev = "e398400a0b785af3cf571f5a57eccab242f0cdf9" }
+source = { git = "https://github.com/UserNobody14/tree-sitter-dart", rev = "a9bdfa3db2fbc9b9f12c93450d04a671f33a5102" }
 
 [[language]]
 name = "scala"
diff --git a/runtime/queries/dart/highlights.scm b/runtime/queries/dart/highlights.scm
index 37ec1432..d9154670 100644
--- a/runtime/queries/dart/highlights.scm
+++ b/runtime/queries/dart/highlights.scm
@@ -11,14 +11,20 @@
 ; --------------------
 (annotation
   name: (identifier) @attribute)
-(marker_annotation
-  name: (identifier) @attribute)
 
 ; Types
 ; --------------------
 (class_definition
   name: (identifier) @type)
 
+; Dart 3 extension types and extensions
+(extension_type_declaration
+  name: (identifier) @type)
+(extension_declaration
+  name: (identifier) @type)
+(representation_declaration
+  name: (identifier) @variable.other.member)
+
 (constructor_signature
   name: (identifier) @function.method)
 
@@ -83,6 +89,14 @@
 (named_argument
   (label (identifier) @variable))
 
+; Dart 3 dot-shorthand (`.red`): the member resolved from the context type.
+(dot_shorthand
+  (identifier) @variable.other.member)
+
+; Statement labels (`outer:` … `break outer;`).
+(labeled_statement
+  (identifier) @label)
+
 ; Literals
 ; --------------------
 [
@@ -190,12 +204,15 @@
   "throw"
   "catch"
   "finally"
+  (rethrow_builtin)
   (break_statement)
 ] @keyword.control.exception
 
 ; Reserved words (cannot be used as identifiers)
 [
     (case_builtin)
+    (assert_builtin)
+    (part_of_builtin)
     "abstract"
     "async"
     "async*"
@@ -204,7 +221,6 @@
     "class"
     "covariant"
     "deferred"
-    "dynamic"
     "enum"
     "extends"
     "extension"
@@ -233,4 +249,4 @@
 
 ; when used as an identifier:
 ((identifier) @variable.builtin
- (#match? @variable.builtin "^(abstract|as|base|covariant|deferred|dynamic|export|external|factory|final|Function|get|implements|import|interface|library|operator|mixin|part|sealed|set|static|typedef)$"))
+ (#match? @variable.builtin "^(abstract|as|base|covariant|deferred|export|external|factory|final|Function|get|implements|import|interface|library|operator|mixin|part|sealed|set|static|typedef)$"))
diff --git a/runtime/queries/dart/textobjects.scm b/runtime/queries/dart/textobjects.scm
index b88b97bc..5750300c 100644
--- a/runtime/queries/dart/textobjects.scm
+++ b/runtime/queries/dart/textobjects.scm
@@ -7,6 +7,9 @@
 (extension_declaration
   (extension_body) @class.inside) @class.around
 
+(extension_type_declaration
+  body: (_) @class.inside) @class.around
+
 (enum_declaration
   body: (_) @class.inside) @class.around