diff --git a/README.md b/README.md
index 25bb7be..ebe3b8b 100644
--- a/README.md
+++ b/README.md
@@ -1,18 +1,3 @@
-### Chat App Development Front-End and Back-End using Flutter, SocketIo, and NodeJS. (Limited code)
-
-
-
-<a href="https://www.buymeacoffee.com/DevStack06" target="_blank"  align="center">
-    <p  align="center">
-   <img   src="https://cdn.buymeacoffee.com/buttons/default-orange.png" alt="Buy Me A Coffee" height="41" width="174">
-   </p>
-</a>
-
-<p align="center">
-( You can buy the full source code of tutorial in $30 (mail me):
- <a href="mailto:devstackin@gmail.com"> devstackin@gmail.com</a>
- )
-</p>
 
 In this full tutrial source code you will get:
 - One to one chatting
diff --git a/android/gradle/wrapper/gradle-wrapper.properties b/android/gradle/wrapper/gradle-wrapper.properties
index 296b146..3cf5436 100644
--- a/android/gradle/wrapper/gradle-wrapper.properties
+++ b/android/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Fri Jun 23 08:50:38 CEST 2017
+#Sat Mar 16 13:06:02 AST 2024
 distributionBase=GRADLE_USER_HOME
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.1.1-bin.zip
 distributionPath=wrapper/dists
-zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-5.6.2-all.zip
+zipStoreBase=GRADLE_USER_HOME
diff --git a/pubspec.yaml b/pubspec.yaml
index c2138bd..5141cda 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -18,7 +18,7 @@ publish_to: "none" # Remove this line if you wish to publish to pub.dev
 version: 1.0.0+1
 
 environment:
-  sdk: ">=2.7.0 <3.0.0"
+  sdk: "3.3.1"
 
 dependencies:
   flutter: