diff --git a/.github/workflows/dart_ci.yaml b/.github/workflows/dart_ci.yaml
index 386af56..265cb24 100644
--- a/.github/workflows/dart_ci.yaml
+++ b/.github/workflows/dart_ci.yaml
@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        sdk: [ 2.13.4, 2.18.7, stable, beta ]
+        sdk: [ 2.18.7, 2.19.6, stable ]
     steps:
       - uses: actions/checkout@v2
       - uses: dart-lang/setup-dart@v1
diff --git a/lib/src/analyzer_helpers.dart b/lib/src/analyzer_helpers.dart
index 1a99669..58ea8c6 100644
--- a/lib/src/analyzer_helpers.dart
+++ b/lib/src/analyzer_helpers.dart
@@ -172,7 +172,7 @@ String _copyFieldDeclaration(FieldDeclaration decl, String initializer) {
   if (decl.staticKeyword != null) {
     result = '${decl.staticKeyword} $result';
   }
-  result = '$result ${decl.fields.variables.first.name.name}';
+  result = '$result ${decl.fields.variables.first.name.lexeme}';
   if (initializer.isNotEmpty) {
     result = '$result = $initializer;';
   } else {
@@ -192,7 +192,7 @@ String _copyGetterDeclaration(MethodDeclaration decl, String body) {
     result = 'static $result';
   }
 
-  result = '$result ${decl.name.name}';
+  result = '$result ${decl.name.lexeme}';
   if (decl.body.keyword != null) {
     result = '$result ${decl.body.keyword}${decl.body.star ?? ''}';
   }
@@ -205,12 +205,12 @@ String _copySetterDeclaration(MethodDeclaration decl, String body) {
   if (decl.isStatic) {
     result = 'static $result';
   }
-  result = '$result ${decl.name.name}${decl.parameters} {\n$body\n  }';
+  result = '$result ${decl.name.lexeme}${decl.parameters} {\n$body\n  }';
   return result;
 }
 
 String _copyMethodDeclaration(MethodDeclaration decl, String body) {
-  var result = '${decl.name.name}';
+  var result = '${decl.name.lexeme}';
   if (decl.returnType != null) {
     result = '${decl.returnType} $result';
   }
diff --git a/pubspec.yaml b/pubspec.yaml
index e6f0b29..32891ab 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -7,7 +7,7 @@ environment:
   sdk: ">=2.12.0 <3.0.0"
 
 dependencies:
-  analyzer: '>=2.0.0 <5.0.0'
+  analyzer: ^5.0.0
   build:  ^2.0.3
   collection: ^1.15.0
   path: ^1.8.0
diff --git a/test/test_utils.dart b/test/test_utils.dart
index 847d582..57bae68 100644
--- a/test/test_utils.dart
+++ b/test/test_utils.dart
@@ -31,7 +31,7 @@ class TestAnnotation {
 ConstructorDeclaration? getConstructor(ClassDeclaration classDecl,
     {String? name}) {
   for (var member in classDecl.members) {
-    if (member is ConstructorDeclaration && member.name?.name == name) {
+    if (member is ConstructorDeclaration && member.name?.lexeme == name) {
       return member;
     }
   }
@@ -41,7 +41,7 @@ ConstructorDeclaration? getConstructor(ClassDeclaration classDecl,
 FieldDeclaration? getFieldByName(ClassDeclaration classDecl, String name) {
   for (var member in classDecl.members) {
     if (member is FieldDeclaration &&
-        member.fields.variables.first.name.name == name) {
+        member.fields.variables.first.name.lexeme == name) {
       return member;
     }
   }
@@ -50,7 +50,7 @@ FieldDeclaration? getFieldByName(ClassDeclaration classDecl, String name) {
 
 MethodDeclaration? getMethodByName(ClassDeclaration classDecl, String name) {
   for (var member in classDecl.members) {
-    if (member is MethodDeclaration && member.name.name == name) {
+    if (member is MethodDeclaration && member.name.lexeme == name) {
       return member;
     }
   }