diff --git a/native_opencv/android/build.gradle b/native_opencv/android/build.gradle
index 751ea9e..84ad161 100644
--- a/native_opencv/android/build.gradle
+++ b/native_opencv/android/build.gradle
@@ -2,14 +2,14 @@ group 'com.valyouw.native_opencv'
 version '1.0-SNAPSHOT'
 
 buildscript {
-    ext.kotlin_version = '1.3.50'
+    ext.kotlin_version = '1.7.0'
     repositories {
         google()
         mavenCentral()
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:4.1.0'
+        classpath 'com.android.tools.build:gradle:4.1.3'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
     }
 }
diff --git a/native_opencv/example/android/build.gradle b/native_opencv/example/android/build.gradle
index 6b57dfa..c4ee63c 100644
--- a/native_opencv/example/android/build.gradle
+++ b/native_opencv/example/android/build.gradle
@@ -1,5 +1,5 @@
 buildscript {
-    ext.kotlin_version = '1.3.50'
+    ext.kotlin_version = '1.7.0'
     repositories {
         google()
         mavenCentral()
diff --git a/native_opencv/example/android/gradle/wrapper/gradle-wrapper.properties b/native_opencv/example/android/gradle/wrapper/gradle-wrapper.properties
index 571984a..b9f4649 100644
--- a/native_opencv/example/android/gradle/wrapper/gradle-wrapper.properties
+++ b/native_opencv/example/android/gradle/wrapper/gradle-wrapper.properties
@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.7-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.7.1-all.zip
diff --git a/native_opencv/example/pubspec.lock b/native_opencv/example/pubspec.lock
index eab5b6a..832be94 100644
--- a/native_opencv/example/pubspec.lock
+++ b/native_opencv/example/pubspec.lock
@@ -42,7 +42,7 @@ packages:
       name: collection
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.15.0"
+    version: "1.16.0"
   cupertino_icons:
     dependency: "direct main"
     description:
@@ -56,7 +56,7 @@ packages:
       name: fake_async
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.2.0"
+    version: "1.3.0"
   ffi:
     dependency: transitive
     description:
@@ -95,6 +95,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "0.12.11"
+  material_color_utilities:
+    dependency: transitive
+    description:
+      name: material_color_utilities
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.1.4"
   meta:
     dependency: transitive
     description:
@@ -115,7 +122,7 @@ packages:
       name: path
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.8.0"
+    version: "1.8.1"
   sky_engine:
     dependency: transitive
     description: flutter
@@ -127,7 +134,7 @@ packages:
       name: source_span
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.8.1"
+    version: "1.8.2"
   stack_trace:
     dependency: transitive
     description:
@@ -162,21 +169,14 @@ packages:
       name: test_api
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.4.3"
-  typed_data:
-    dependency: transitive
-    description:
-      name: typed_data
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.3.0"
+    version: "0.4.9"
   vector_math:
     dependency: transitive
     description:
       name: vector_math
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.1"
+    version: "2.1.2"
 sdks:
-  dart: ">=2.15.1 <3.0.0"
+  dart: ">=2.17.0-0 <3.0.0"
   flutter: ">=2.5.0"
diff --git a/opencv_app/android/build.gradle b/opencv_app/android/build.gradle
index 6b57dfa..c4ee63c 100644
--- a/opencv_app/android/build.gradle
+++ b/opencv_app/android/build.gradle
@@ -1,5 +1,5 @@
 buildscript {
-    ext.kotlin_version = '1.3.50'
+    ext.kotlin_version = '1.7.0'
     repositories {
         google()
         mavenCentral()
diff --git a/opencv_app/android/gradle/wrapper/gradle-wrapper.properties b/opencv_app/android/gradle/wrapper/gradle-wrapper.properties
index 571984a..b9f4649 100644
--- a/opencv_app/android/gradle/wrapper/gradle-wrapper.properties
+++ b/opencv_app/android/gradle/wrapper/gradle-wrapper.properties
@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.7-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.7.1-all.zip
diff --git a/opencv_app/pubspec.lock b/opencv_app/pubspec.lock
index 9c14d5f..c270b89 100644
--- a/opencv_app/pubspec.lock
+++ b/opencv_app/pubspec.lock
@@ -63,7 +63,7 @@ packages:
       name: collection
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.15.0"
+    version: "1.16.0"
   cross_file:
     dependency: transitive
     description:
@@ -77,7 +77,7 @@ packages:
       name: fake_async
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.2.0"
+    version: "1.3.0"
   ffi:
     dependency: transitive
     description:
@@ -120,7 +120,7 @@ packages:
       name: js
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.6.3"
+    version: "0.6.4"
   lints:
     dependency: transitive
     description:
@@ -135,6 +135,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "0.12.11"
+  material_color_utilities:
+    dependency: transitive
+    description:
+      name: material_color_utilities
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.1.4"
   meta:
     dependency: transitive
     description:
@@ -155,7 +162,7 @@ packages:
       name: path
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.8.0"
+    version: "1.8.1"
   pedantic:
     dependency: transitive
     description:
@@ -188,7 +195,7 @@ packages:
       name: source_span
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.8.1"
+    version: "1.8.2"
   stack_trace:
     dependency: transitive
     description:
@@ -230,21 +237,14 @@ packages:
       name: test_api
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.4.3"
-  typed_data:
-    dependency: transitive
-    description:
-      name: typed_data
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.3.0"
+    version: "0.4.9"
   vector_math:
     dependency: transitive
     description:
       name: vector_math
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.1"
+    version: "2.1.2"
 sdks:
-  dart: ">=2.15.1 <3.0.0"
+  dart: ">=2.17.0-0 <3.0.0"
   flutter: ">=2.5.0"