diff --git a/backup-commons/build.gradle b/backup-commons/build.gradle
index f30e787..acb5d83 100644
--- a/backup-commons/build.gradle
+++ b/backup-commons/build.gradle
@@ -4,8 +4,8 @@ apply plugin: 'maven'
 group 'com.opsgenie.tools'
 version '0.23.8'
 
-sourceCompatibility = 1.6
-targetCompatibility = 1.6
+sourceCompatibility = 1.8
+targetCompatibility = 1.8
 
 repositories {
     mavenLocal()
@@ -17,11 +17,16 @@ apply plugin: 'java'
 apply plugin: 'project-report'
 
 dependencies {
-    compile 'org.apache.logging.log4j:log4j-api:2.16.0'
-    compile 'org.apache.logging.log4j:log4j-core:2.16.0'
-    compile "org.apache.logging.log4j:log4j-slf4j-impl:2.16.0"
+    compile 'org.apache.logging.log4j:log4j-api:2.17.2'
+    compile 'org.apache.logging.log4j:log4j-core:2.17.2'
+    compile "org.apache.logging.log4j:log4j-slf4j-impl:2.17.2"
     compile "com.beust:jcommander:1.48"
-    compile 'org.eclipse.jgit:org.eclipse.jgit:4.5.0.201609210915-r'
+    compile 'org.apache.httpcomponents:httpclient:4.5.13'
+    compile 'org.apache.httpcomponents:httpcore:4.4.15'
+    //compile 'com.jcraft:jsch:0.1.55'
+    compile 'org.eclipse.jgit:org.eclipse.jgit:5.13.0.202109080827-r'
+    compile 'org.eclipse.jgit:org.eclipse.jgit.ssh.apache:5.13.0.202109080827-r'
+    compile 'org.eclipse.jgit:org.eclipse.jgit.ssh.jsch:5.13.0.202109080827-r'
     compile "com.opsgenie.oas:opsgenie-sdk-swagger:1.0.12"
     compile ('com.fasterxml.jackson.core:jackson-databind:2.10.4') {
         force = true
diff --git a/backup-commons/src/main/java/com/opsgenie/tools/backup/BaseBackup.java b/backup-commons/src/main/java/com/opsgenie/tools/backup/BaseBackup.java
index fdbfa09..51fc24a 100644
--- a/backup-commons/src/main/java/com/opsgenie/tools/backup/BaseBackup.java
+++ b/backup-commons/src/main/java/com/opsgenie/tools/backup/BaseBackup.java
@@ -17,6 +17,10 @@
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import org.eclipse.jgit.transport.JschConfigSessionFactory;
+import org.eclipse.jgit.transport.OpenSshConfig;
+import org.eclipse.jgit.transport.CredentialsProviderUserInfo;
+
 import java.io.File;
 import java.io.FileNotFoundException;
 import java.io.UnsupportedEncodingException;
diff --git a/backup-commons/src/main/java/com/opsgenie/tools/backup/retry/RateLimitManager.java b/backup-commons/src/main/java/com/opsgenie/tools/backup/retry/RateLimitManager.java
index 276b6eb..3808ec2 100644
--- a/backup-commons/src/main/java/com/opsgenie/tools/backup/retry/RateLimitManager.java
+++ b/backup-commons/src/main/java/com/opsgenie/tools/backup/retry/RateLimitManager.java
@@ -26,7 +26,7 @@ private int getApiLimitForDomain(DomainNames domain, int periodInSeconds) {
                 resultLimit = domainLimitDto.getLimit();
             }
         }
-        return resultLimit;
+        return Math.max(resultLimit, 1);
     }
 
     public int getRateLimit(DomainNames domain, int period) {
diff --git a/backup-commons/src/main/java/com/opsgenie/tools/backup/util/BackupUtils.java b/backup-commons/src/main/java/com/opsgenie/tools/backup/util/BackupUtils.java
index abd26b3..f861536 100644
--- a/backup-commons/src/main/java/com/opsgenie/tools/backup/util/BackupUtils.java
+++ b/backup-commons/src/main/java/com/opsgenie/tools/backup/util/BackupUtils.java
@@ -49,7 +49,7 @@ public static String readFile(String fileName) throws IOException {
 
     public static RateLimitsDto generateRateLimits(String apiKey, String opsGenieHost) throws IOException {
         try {
-            HttpClient client = HttpClientBuilder.create().build();
+            HttpClient client = HttpClientBuilder.create().useSystemProperties().build();
 
             HttpGet httpGet = new HttpGet(opsGenieHost + "/v2/request-limits/");
             httpGet.addHeader(HttpHeaders.AUTHORIZATION, "GenieKey " + apiKey);
diff --git a/backup-export/build.gradle b/backup-export/build.gradle
index db71d60..670c678 100644
--- a/backup-export/build.gradle
+++ b/backup-export/build.gradle
@@ -3,7 +3,7 @@ version '0.23.8'
 
 apply plugin: 'java'
 
-sourceCompatibility = 1.6
+sourceCompatibility = 1.8
 
 dependencies {
     compile project(':backup-commons')
diff --git a/backup-import/build.gradle b/backup-import/build.gradle
index 2110fc7..1a3281a 100644
--- a/backup-import/build.gradle
+++ b/backup-import/build.gradle
@@ -3,7 +3,7 @@ version '0.23.8'
 
 apply plugin: 'java'
 
-sourceCompatibility = 1.6
+sourceCompatibility = 1.8
 
 dependencies {
     compile project(':backup-commons')
diff --git a/build.gradle b/build.gradle
index d7d2212..0d89eba 100755
--- a/build.gradle
+++ b/build.gradle
@@ -4,8 +4,8 @@ apply plugin: 'maven'
 group 'com.opsgenie.tools'
 version '0.23.8'
 
-sourceCompatibility = 1.6
-targetCompatibility = 1.6
+sourceCompatibility = 1.8
+targetCompatibility = 1.8
 
 repositories {
     mavenLocal()
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index f23c24e..038335a 100755
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-3.0-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.3-bin.zip