diff --git a/.idea/caches/build_file_checksums.ser b/.idea/caches/build_file_checksums.ser
index 0a9a997b0b..47a6a08f5d 100644
Binary files a/.idea/caches/build_file_checksums.ser and b/.idea/caches/build_file_checksums.ser differ
diff --git a/app/build.gradle b/app/build.gradle
index aec1870136..3101db2004 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -15,7 +15,7 @@ android {
         applicationId "com.tangem.wallet"
         minSdkVersion 21
         targetSdkVersion 27
-        versionCode 26
+        versionCode 27
         versionName "0.85.5." + generateVersionName()
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
     }
diff --git a/app/src/main/java/com/tangem/domain/TestNode.kt b/app/src/main/java/com/tangem/domain/BitcoinTestNetNode.kt
similarity index 77%
rename from app/src/main/java/com/tangem/domain/TestNode.kt
rename to app/src/main/java/com/tangem/domain/BitcoinTestNetNode.kt
index 5ab1354eb6..26594e5bf8 100644
--- a/app/src/main/java/com/tangem/domain/TestNode.kt
+++ b/app/src/main/java/com/tangem/domain/BitcoinTestNetNode.kt
@@ -1,6 +1,6 @@
 package com.tangem.domain
 
-enum class TestNode(val host: String, val port: Int) {
+enum class BitcoinTestNetNode(val host: String, val port: Int) {
     arihanc_com("testnetnode.arihanc.com", 51001),
     hsmiths_com("testnet.hsmiths.com", 53011),
     qtornado_com("testnet.qtornado.com", 51001),
diff --git a/app/src/main/java/com/tangem/domain/wallet/BtcEngine.java b/app/src/main/java/com/tangem/domain/wallet/BtcEngine.java
index 11bb924367..50617a497c 100644
--- a/app/src/main/java/com/tangem/domain/wallet/BtcEngine.java
+++ b/app/src/main/java/com/tangem/domain/wallet/BtcEngine.java
@@ -2,7 +2,7 @@ package com.tangem.domain.wallet;
 
 import android.net.Uri;
 
-import com.tangem.domain.TestNode;
+import com.tangem.domain.BitcoinTestNetNode;
 import com.tangem.domain.cardReader.CardProtocol;
 import com.tangem.domain.cardReader.TLV;
 import com.tangem.util.BTCUtils;
@@ -61,20 +61,20 @@ public class BtcEngine extends CoinEngine {
 
 
 //    public static String[] GetBitcoinTestNetServiceHosts() {
-//        return new String[]{/*"testnetnode.arihanc.com"*/TestNode.hsmiths_com.getHost(), TestNode.qtornado_com.getHost(), TestNode.bauerj_eu.getHost()};
+//        return new String[]{/*"testnetnode.arihanc.com"*/BitcoinTestNetNode.hsmiths_com.getHost(), BitcoinTestNetNode.qtornado_com.getHost(), BitcoinTestNetNode.bauerj_eu.getHost()};
 //    }
 //
 //    public static Integer[] GetBitcoinTestNetServicePorts() {
-//        return new Integer[]{/*51001*/TestNode.hsmiths_com.getPort(), TestNode.qtornado_com.getPort(), TestNode.bauerj_eu.getPort()};
+//        return new Integer[]{/*51001*/BitcoinTestNetNode.hsmiths_com.getPort(), BitcoinTestNetNode.qtornado_com.getPort(), BitcoinTestNetNode.bauerj_eu.getPort()};
 //    }
 
 
     public static String[] GetBitcoinTestNetServiceHosts() {
-        return new String[]{TestNode.bauerj_eu.getHost()};
+        return new String[]{BitcoinTestNetNode.bauerj_eu.getHost()};
     }
 
     public static Integer[] GetBitcoinTestNetServicePorts() {
-        return new Integer[]{TestNode.bauerj_eu.getPort()};
+        return new Integer[]{BitcoinTestNetNode.bauerj_eu.getPort()};
     }
 
 
diff --git a/build.gradle b/build.gradle
index b36659f44a..b60a90f497 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,6 +1,6 @@
 buildscript {
 
-    ext.kotlin_version = '1.2.41'
+    ext.kotlin_version = '1.2.50'
     repositories {
         google()
         jcenter()