diff --git a/.idea/gradle.xml b/.idea/gradle.xml
index da117a274a..dbe604a60c 100644
--- a/.idea/gradle.xml
+++ b/.idea/gradle.xml
@@ -11,7 +11,7 @@
             <option value="$PROJECT_DIR$/app" />
             <option value="$PROJECT_DIR$/card-android" />
             <option value="$PROJECT_DIR$/card-common" />
-            <option value="$PROJECT_DIR$/ripple-core-0.0.1" />
+            <option value="$PROJECT_DIR$/ripple-core" />
             <option value="$PROJECT_DIR$/server-android" />
           </set>
         </option>
diff --git a/app/build.gradle b/app/build.gradle
index dff789a723..81e51cffcf 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -47,7 +47,14 @@ dependencies {
     implementation project(':card-common')
     implementation project(':card-android')
     implementation project(':server-android')
-    implementation project(':ripple-core-0.0.1')
+    implementation project(':ripple-core')
+
+    //for ripple-core TODO: move to ripple-core?
+    implementation 'net.i2p.crypto:eddsa:0.2.0'
+    implementation 'org.bouncycastle:bcprov-jdk15on:1.58'
+    //noinspection DuplicatePlatformClasses
+    implementation 'org.json:json:20171018'
+    implementation 'com.fasterxml.jackson.core:jackson-databind:2.9.3'
 
 //    implementation 'com.github.TangemCash:card-common:0.1.2'
 //    implementation 'com.github.TangemCash:card-android:0.1.3'
diff --git a/app/src/main/java/com/tangem/domain/wallet/xrp/XrpPayment.java b/app/src/main/java/com/tangem/domain/wallet/xrp/XrpPayment.java
index 1d202c922f..449d755e65 100644
--- a/app/src/main/java/com/tangem/domain/wallet/xrp/XrpPayment.java
+++ b/app/src/main/java/com/tangem/domain/wallet/xrp/XrpPayment.java
@@ -1,5 +1,6 @@
 package com.tangem.domain.wallet.xrp;
 
+
 import com.ripple.core.types.known.tx.txns.Payment;
 
 public class XrpPayment extends Payment {
diff --git a/ripple-core-0.0.1/build.gradle b/ripple-core-0.0.1/build.gradle
index 7ee498ed2c..ff793da726 100644
--- a/ripple-core-0.0.1/build.gradle
+++ b/ripple-core-0.0.1/build.gradle
@@ -1,52 +1,15 @@
-apply plugin: 'java'
-apply plugin: 'kotlin'
+configurations.maybeCreate("default")
+artifacts.add("default", file('ripple-core-0.0.1-SNAPSHOT.jar'))
 
-description = 'ripple-core'
-
-version = '0.0.1-SNAPSHOT'
-
-sourceCompatibility = 1.8
-targetCompatibility = 1.8
+apply plugin: 'java-library'
+apply plugin: 'com.github.dcendents.android-maven'
 
 dependencies {
-    compile 'net.i2p.crypto:eddsa:0.2.0'
-    compile 'org.bouncycastle:bcprov-jdk15on:1.58'
-    compile 'org.json:json:20171018'
-    compile 'com.fasterxml.jackson.core:jackson-databind:2.9.3'
-    testCompile 'junit:junit:4.12'
-    testCompile "org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlin_version"
-    testCompile "org.jetbrains.kotlinx:kotlinx-coroutines-core:0.22.5"
-}
-buildscript {
-    ext.kotlin_version = '1.3.0'
-    repositories {
-        mavenCentral()
-    }
-    dependencies {
-        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
-    }
+    implementation 'net.i2p.crypto:eddsa:0.2.0'
+    implementation 'org.bouncycastle:bcprov-jdk15on:1.58'
+    implementation 'org.json:json:20171018'
+    implementation 'com.fasterxml.jackson.core:jackson-databind:2.9.3'
 }
 repositories {
     mavenCentral()
-}
-compileKotlin {
-    kotlinOptions {
-        jvmTarget = "1.8"
-    }
-}
-compileTestKotlin {
-    kotlinOptions {
-        jvmTarget = "1.8"
-    }
-}
-
-task getDeps(type: Copy) {
-    from configurations.compile
-    into "$rootDir/jars/"
-}
-
-kotlin {
-    experimental {
-        coroutines "enable"
-    }
 }
\ No newline at end of file
diff --git a/ripple-core/build.gradle b/ripple-core/build.gradle
new file mode 100644
index 0000000000..31be8312e1
--- /dev/null
+++ b/ripple-core/build.gradle
@@ -0,0 +1,2 @@
+configurations.maybeCreate("default")
+artifacts.add("default", file('ripple-core-0.0.1-SNAPSHOT.jar'))
\ No newline at end of file
diff --git a/ripple-core/ripple-core-0.0.1-SNAPSHOT.jar b/ripple-core/ripple-core-0.0.1-SNAPSHOT.jar
new file mode 100644
index 0000000000..0600aabbdb
Binary files /dev/null and b/ripple-core/ripple-core-0.0.1-SNAPSHOT.jar differ
diff --git a/settings.gradle b/settings.gradle
index 27d8397e5d..7c7add5bef 100644
--- a/settings.gradle
+++ b/settings.gradle
@@ -1 +1 @@
-include ':app', ':card-android', ':server-android', ':card-common', ':ripple-core-0.0.1'
+include ':app', ':card-android', ':server-android', ':card-common', ':ripple-core'