diff --git a/build.gradle b/build.gradle
index a145449..30736c3 100755
--- a/build.gradle
+++ b/build.gradle
@@ -1,17 +1,18 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 
 buildscript {
-    ext.kotlin_version = '1.3.50'
-    ext.support_ver = '1.1.0'
+    ext.kotlin_version = '1.3.72'
+    ext.support_ver = '1.5.0'
     ext.gcm_ver = '17.0.0'
-    ext.retrofit_ver = '2.4.0'
-    ext.androidx = '1.1.0'
-    ext.androidx_recycler = '1.1.0-beta05'
-    ext.lifecycle = '2.1.0'
+    ext.retrofit_ver = '2.9.0'
+    ext.androidx = '1.3.0'
+    ext.androidx_recycler = '1.2.0'
+    ext.lifecycle = '2.2.0'
+    ext.lifecycle_ktx = '2.3.1'
     project.ext {
         min_ver = 17
-        target_ver = 28
-        compile_ver = 28
+        target_ver = 30
+        compile_ver = 30
         ver_code = 1
         ver_name = '1.0'
     }
@@ -22,7 +23,7 @@ buildscript {
         maven { url 'https://jitpack.io' }
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.5.1'
+        classpath 'com.android.tools.build:gradle:3.5.4'
         classpath 'com.github.dcendents:android-maven-gradle-plugin:2.1'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
         // NOTE: Do not place your application dependencies here; they belong
diff --git a/contract/build.gradle b/contract/build.gradle
index 742bfc4..a4a0df5 100755
--- a/contract/build.gradle
+++ b/contract/build.gradle
@@ -25,8 +25,8 @@ android {
 
 dependencies {
     // lifecycle
-    implementation "androidx.core:core:$support_ver"
+    implementation "androidx.core:core-ktx:$support_ver"
     implementation "androidx.lifecycle:lifecycle-extensions:$lifecycle"
-    implementation "androidx.lifecycle:lifecycle-livedata-ktx:$lifecycle"
-    implementation "androidx.lifecycle:lifecycle-viewmodel-ktx:$lifecycle"
+    implementation "androidx.lifecycle:lifecycle-livedata-ktx:$lifecycle_ktx"
+    implementation "androidx.lifecycle:lifecycle-viewmodel-ktx:$lifecycle_ktx"
 }
diff --git a/recycler_fragment/build.gradle b/recycler_fragment/build.gradle
index d1fd324..9b0e9a9 100755
--- a/recycler_fragment/build.gradle
+++ b/recycler_fragment/build.gradle
@@ -26,7 +26,7 @@ dependencies {
     implementation project(':recycler')
     implementation project(':commons')
 
-    implementation "androidx.swiperefreshlayout:swiperefreshlayout:1.0.0"
+    implementation "androidx.swiperefreshlayout:swiperefreshlayout:1.1.0"
     implementation "androidx.recyclerview:recyclerview:$androidx_recycler"
     implementation "androidx.appcompat:appcompat:$androidx"
 }