diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
new file mode 100644
index 0000000..ceab9f2
--- /dev/null
+++ b/.github/workflows/build.yml
@@ -0,0 +1,16 @@
+name: Build
+
+on: [push]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set up JDK 1.8
+        uses: actions/setup-java@v1
+        with:
+          java-version: 1.8
+      - name: Build with Gradle
+        run: ./gradlew build
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index 67c6220..0000000
--- a/.travis.yml
+++ /dev/null
@@ -1,10 +0,0 @@
-language: java
-install: true
-
-os: linux
-dist: trusty
-jdk: oraclejdk8
-
-script:
-  - ./gradlew build allTests -s
-
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 540d171..6f6e87f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,10 @@
 # SDI changelogs
 
+## 0.4.0-rc2
+
+* `Kotlin`: `1.4.21` -> `1.4.30`
+* `Serialization`: `1.0.1` -> `1.1.0-RC`
+
 ## 0.4.0-rc
 
 **ALL PROJECT HAS MIGRATED FROM PACKAGE `com.insanusmokrassar` TO `dev.inmo`**
diff --git a/gradle.properties b/gradle.properties
index 4b1d038..fc86eec 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,11 +1,12 @@
 kotlin.code.style=official
-kotlin_version=1.4.21
-kotlin_serialisation_runtime_version=1.0.1
+org.gradle.parallel=true
+kotlin.incremental.multiplatform=true
+
+kotlin_version=1.4.30
+kotlin_serialisation_runtime_version=1.1.0-RC
 klassindex_version=4.1.0-rc.1
 
 github_release_plugin_version=2.2.12
 
 group=dev.inmo
-version=0.4.0-rc
-
-kotlin.incremental.multiplatform=true
+version=0.4.0-rc2
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index ca8c529..9fccb7a 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -2,4 +2,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.8-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.8.2-bin.zip
diff --git a/mpp_publish_config.kpsb b/mpp_publish_config.kpsb
index 0828bf6..8f5c991 100644
--- a/mpp_publish_config.kpsb
+++ b/mpp_publish_config.kpsb
@@ -1 +1 @@
-{"bintrayConfig":{"repo":"InsanusMokrassar","packageName":"${project.name}","packageVcs":"https://git.insanusmokrassar.com/InsanusMokrassar/SDI.git","autoPublish":true,"overridePublish":true},"licenses":[{"id":"Apache-2.0","title":"Apache Software License 2.0","url":"https://git.insanusmokrassar.com/PostsSystem/SDI/src/master/LICENSE"}],"mavenConfig":{"name":"Simple Dependency Injector","description":"Simple library for creating dependencies tree using Kotlin Serialization","url":"https://git.insanusmokrassar.com/InsanusMokrassar/SDI","vcsUrl":"https://git.insanusmokrassar.com/InsanusMokrassar/SDI.git","developers":[{"id":"InsanusMokrassar","name":"Ovsiannikov Aleksei","eMail":"ovsyannikov.alexey95@gmail.com"}]}}
\ No newline at end of file
+{"bintrayConfig":{"repo":"InsanusMokrassar","packageName":"${project.name}","packageVcs":"https://git.insanusmokrassar.com/InsanusMokrassar/SDI.git","autoPublish":true,"overridePublish":true},"licenses":[{"id":"Apache-2.0","title":"Apache Software License 2.0","url":"https://git.insanusmokrassar.com/PostsSystem/SDI/src/master/LICENSE"}],"mavenConfig":{"name":"Simple Dependency Injector","description":"Simple library for creating dependencies tree using Kotlin Serialization","url":"https://git.insanusmokrassar.com/InsanusMokrassar/SDI","vcsUrl":"https://git.insanusmokrassar.com/InsanusMokrassar/SDI.git","includeGpgSigning":true,"publishToMavenCentral":true,"developers":[{"id":"InsanusMokrassar","name":"Ovsiannikov Aleksei","eMail":"ovsyannikov.alexey95@gmail.com"}]}}
\ No newline at end of file
diff --git a/publish.gradle b/publish.gradle
index 67f4cf9..44ccd6c 100644
--- a/publish.gradle
+++ b/publish.gradle
@@ -1,24 +1,9 @@
 apply plugin: 'maven-publish'
+apply plugin: 'signing'
 
 task javadocsJar(type: Jar) {
     classifier = 'javadoc'
 }
-task sourceJar (type : Jar) {
-    classifier = 'sources'
-}
-
-afterEvaluate {
-    project.publishing.publications.all {
-        // rename artifacts
-        groupId "${project.group}"
-        if (it.name.contains('kotlinMultiplatform')) {
-            artifactId = "${project.name}"
-            artifact sourceJar
-        } else {
-            artifactId = "${project.name}-$name"
-        }
-    }
-}
 
 publishing {
     publications.all {
@@ -63,7 +48,22 @@ publishing {
                     password = project.hasProperty('BINTRAY_KEY') ? project.property('BINTRAY_KEY') : System.getenv('BINTRAY_KEY')
                 }
             }
+            
+            maven {
+                name = "sonatype"
+                url = uri("https://oss.sonatype.org/service/local/staging/deploy/maven2/")
+                credentials {
+                    username = project.hasProperty('SONATYPE_USER') ? project.property('SONATYPE_USER') : System.getenv('SONATYPE_USER')
+                    password = project.hasProperty('SONATYPE_PASSWORD') ? project.property('SONATYPE_PASSWORD') : System.getenv('SONATYPE_PASSWORD')
+                }
+            }
+            
         }
         
     }
 }
+
+signing {
+    useGpgCmd()
+    sign publishing.publications
+}