diff --git a/example/pubspec.lock b/example/pubspec.lock
index f7d3364..6757786 100644
--- a/example/pubspec.lock
+++ b/example/pubspec.lock
@@ -5,18 +5,18 @@ packages:
     dependency: transitive
     description:
       name: flutter_lints
-      sha256: "9e8c3858111da373efc5aa341de011d9bd23e2c5c5e0c62bccf32438e192d7b1"
+      sha256: "3f41d009ba7172d5ff9be5f6e6e6abb4300e263aab8866d2a0842ed2a70f8f0c"
       url: "https://pub.dev"
     source: hosted
-    version: "3.0.2"
+    version: "4.0.0"
   lints:
     dependency: transitive
     description:
       name: lints
-      sha256: cbf8d4b858bb0134ef3ef87841abdf8d63bfc255c266b7bf6b39daa1085c4290
+      sha256: "976c774dd944a42e83e2467f4cc670daef7eed6295b10b36ae8c85bcbf828235"
       url: "https://pub.dev"
     source: hosted
-    version: "3.0.0"
+    version: "4.0.0"
   meta:
     dependency: "direct main"
     description:
diff --git a/pubspec.lock b/pubspec.lock
index fbcf169..25eedd2 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -53,10 +53,10 @@ packages:
     dependency: "direct main"
     description:
       name: flutter_lints
-      sha256: "9e8c3858111da373efc5aa341de011d9bd23e2c5c5e0c62bccf32438e192d7b1"
+      sha256: "3f41d009ba7172d5ff9be5f6e6e6abb4300e263aab8866d2a0842ed2a70f8f0c"
       url: "https://pub.dev"
     source: hosted
-    version: "3.0.2"
+    version: "4.0.0"
   intl:
     dependency: transitive
     description:
@@ -77,10 +77,10 @@ packages:
     dependency: transitive
     description:
       name: lints
-      sha256: cbf8d4b858bb0134ef3ef87841abdf8d63bfc255c266b7bf6b39daa1085c4290
+      sha256: "976c774dd944a42e83e2467f4cc670daef7eed6295b10b36ae8c85bcbf828235"
       url: "https://pub.dev"
     source: hosted
-    version: "3.0.0"
+    version: "4.0.0"
   markdown:
     dependency: transitive
     description:
diff --git a/pubspec.yaml b/pubspec.yaml
index 4a9bcf2..2effaff 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -7,6 +7,6 @@ homepage: https://github.com/sensuikan1973/pedantic_sensuikan1973
 environment:
   sdk: '>=3.1.0 <4.0.0'
 dependencies:
-  flutter_lints: ^3.0.0
+  flutter_lints: ^4.0.0
 dev_dependencies:
   cider: ^0.2.4