diff --git a/src/main/kotlin/org/opensearch/index/translog/ReplicationTranslogDeletionPolicy.kt b/src/main/kotlin/org/opensearch/index/translog/ReplicationTranslogDeletionPolicy.kt
index ec7a36d0..963044dd 100644
--- a/src/main/kotlin/org/opensearch/index/translog/ReplicationTranslogDeletionPolicy.kt
+++ b/src/main/kotlin/org/opensearch/index/translog/ReplicationTranslogDeletionPolicy.kt
@@ -1,6 +1,6 @@
 package org.opensearch.index.translog
 
-import org.opensearch.common.unit.ByteSizeValue
+import org.opensearch.core.common.unit.ByteSizeValue
 import org.opensearch.index.IndexSettings
 import org.opensearch.index.seqno.RetentionLease
 import org.opensearch.index.seqno.RetentionLeases
diff --git a/src/main/kotlin/org/opensearch/replication/ReplicationPlugin.kt b/src/main/kotlin/org/opensearch/replication/ReplicationPlugin.kt
index 7d66c976..8a17fc51 100644
--- a/src/main/kotlin/org/opensearch/replication/ReplicationPlugin.kt
+++ b/src/main/kotlin/org/opensearch/replication/ReplicationPlugin.kt
@@ -83,7 +83,7 @@ import org.opensearch.cluster.node.DiscoveryNodes
 import org.opensearch.cluster.service.ClusterService
 import org.opensearch.common.CheckedFunction
 import org.opensearch.core.ParseField
-import org.opensearch.common.component.LifecycleComponent
+import org.opensearch.common.lifecycle.LifecycleComponent
 import org.opensearch.core.common.io.stream.NamedWriteableRegistry
 import org.opensearch.core.common.io.stream.Writeable
 import org.opensearch.common.settings.ClusterSettings
@@ -92,8 +92,8 @@ import org.opensearch.common.settings.Setting
 import org.opensearch.common.settings.Settings
 import org.opensearch.common.settings.SettingsFilter
 import org.opensearch.common.settings.SettingsModule
-import org.opensearch.common.unit.ByteSizeUnit
-import org.opensearch.common.unit.ByteSizeValue
+import org.opensearch.core.common.unit.ByteSizeUnit
+import org.opensearch.core.common.unit.ByteSizeValue
 import org.opensearch.common.unit.TimeValue
 import org.opensearch.common.util.concurrent.OpenSearchExecutors
 import org.opensearch.core.xcontent.NamedXContentRegistry
diff --git a/src/main/kotlin/org/opensearch/replication/ReplicationSettings.kt b/src/main/kotlin/org/opensearch/replication/ReplicationSettings.kt
index 2b516f8e..a5065c6d 100644
--- a/src/main/kotlin/org/opensearch/replication/ReplicationSettings.kt
+++ b/src/main/kotlin/org/opensearch/replication/ReplicationSettings.kt
@@ -13,7 +13,7 @@ package org.opensearch.replication
 
 import org.opensearch.cluster.service.ClusterService
 import org.opensearch.common.settings.ClusterSettings
-import org.opensearch.common.unit.ByteSizeValue
+import org.opensearch.core.common.unit.ByteSizeValue
 import org.opensearch.common.unit.TimeValue
 import org.opensearch.commons.utils.OpenForTesting
 
diff --git a/src/main/kotlin/org/opensearch/replication/action/stats/FollowerStatsResponse.kt b/src/main/kotlin/org/opensearch/replication/action/stats/FollowerStatsResponse.kt
index 9d4ae15c..3b4c4503 100644
--- a/src/main/kotlin/org/opensearch/replication/action/stats/FollowerStatsResponse.kt
+++ b/src/main/kotlin/org/opensearch/replication/action/stats/FollowerStatsResponse.kt
@@ -16,7 +16,6 @@ import org.apache.logging.log4j.LogManager
 import org.opensearch.action.FailedNodeException
 import org.opensearch.action.support.nodes.BaseNodesResponse
 import org.opensearch.cluster.ClusterName
-import org.opensearch.common.Strings
 import org.opensearch.core.common.io.stream.StreamInput
 import org.opensearch.core.common.io.stream.StreamOutput
 import org.opensearch.core.xcontent.ToXContent.EMPTY_PARAMS
@@ -117,7 +116,7 @@ class FollowerStatsResponse : BaseNodesResponse<FollowerNodeStatsResponse?>, ToX
     override fun toString(): String {
         val builder: XContentBuilder = XContentFactory.jsonBuilder().prettyPrint()
         toXContent(builder, EMPTY_PARAMS)
-        return Strings.toString(builder)
+        return builder.toString()
     }
 }
 
diff --git a/src/main/kotlin/org/opensearch/replication/action/stats/LeaderStatsResponse.kt b/src/main/kotlin/org/opensearch/replication/action/stats/LeaderStatsResponse.kt
index 29abc78c..d3a54454 100644
--- a/src/main/kotlin/org/opensearch/replication/action/stats/LeaderStatsResponse.kt
+++ b/src/main/kotlin/org/opensearch/replication/action/stats/LeaderStatsResponse.kt
@@ -16,7 +16,6 @@ import org.apache.logging.log4j.LogManager
 import org.opensearch.action.FailedNodeException
 import org.opensearch.action.support.nodes.BaseNodesResponse
 import org.opensearch.cluster.ClusterName
-import org.opensearch.common.Strings
 import org.opensearch.core.common.io.stream.StreamInput
 import org.opensearch.core.common.io.stream.StreamOutput
 import org.opensearch.core.xcontent.ToXContent.EMPTY_PARAMS
@@ -76,7 +75,7 @@ class LeaderStatsResponse : BaseNodesResponse<LeaderNodeStatsResponse?>, ToXCont
     override fun toString(): String {
         val builder: XContentBuilder = XContentFactory.jsonBuilder().prettyPrint()
         toXContent(builder, EMPTY_PARAMS)
-        return Strings.toString(builder)
+        return builder.toString()
     }
 }
 
diff --git a/src/main/kotlin/org/opensearch/replication/metadata/store/ReplicationMetadataStore.kt b/src/main/kotlin/org/opensearch/replication/metadata/store/ReplicationMetadataStore.kt
index 18a0cd6c..d5cbe751 100644
--- a/src/main/kotlin/org/opensearch/replication/metadata/store/ReplicationMetadataStore.kt
+++ b/src/main/kotlin/org/opensearch/replication/metadata/store/ReplicationMetadataStore.kt
@@ -30,7 +30,7 @@ import org.opensearch.client.Client
 import org.opensearch.cluster.health.ClusterHealthStatus
 import org.opensearch.cluster.metadata.IndexMetadata
 import org.opensearch.cluster.service.ClusterService
-import org.opensearch.common.component.AbstractLifecycleComponent
+import org.opensearch.common.lifecycle.AbstractLifecycleComponent
 import org.opensearch.common.settings.Settings
 import org.opensearch.common.util.concurrent.ThreadContext
 import org.opensearch.common.xcontent.XContentType
diff --git a/src/main/kotlin/org/opensearch/replication/repository/RemoteClusterMultiChunkTransfer.kt b/src/main/kotlin/org/opensearch/replication/repository/RemoteClusterMultiChunkTransfer.kt
index b3097f13..344fbcbb 100644
--- a/src/main/kotlin/org/opensearch/replication/repository/RemoteClusterMultiChunkTransfer.kt
+++ b/src/main/kotlin/org/opensearch/replication/repository/RemoteClusterMultiChunkTransfer.kt
@@ -26,7 +26,7 @@ import org.apache.logging.log4j.Logger
 import org.opensearch.action.ActionListener
 import org.opensearch.client.Client
 import org.opensearch.cluster.node.DiscoveryNode
-import org.opensearch.common.unit.ByteSizeValue
+import org.opensearch.core.common.unit.ByteSizeValue
 import org.opensearch.common.util.concurrent.ThreadContext
 import org.opensearch.core.index.shard.ShardId
 import org.opensearch.index.store.Store
diff --git a/src/main/kotlin/org/opensearch/replication/repository/RemoteClusterRepository.kt b/src/main/kotlin/org/opensearch/replication/repository/RemoteClusterRepository.kt
index f5e7a149..7272c006 100644
--- a/src/main/kotlin/org/opensearch/replication/repository/RemoteClusterRepository.kt
+++ b/src/main/kotlin/org/opensearch/replication/repository/RemoteClusterRepository.kt
@@ -47,7 +47,7 @@ import org.opensearch.cluster.node.DiscoveryNode
 import org.opensearch.cluster.service.ClusterService
 import org.opensearch.common.Nullable
 import org.opensearch.common.UUIDs
-import org.opensearch.common.component.AbstractLifecycleComponent
+import org.opensearch.common.lifecycle.AbstractLifecycleComponent
 import org.opensearch.common.metrics.CounterMetric
 import org.opensearch.common.settings.Settings
 import org.opensearch.index.mapper.MapperService
diff --git a/src/main/kotlin/org/opensearch/replication/repository/RemoteClusterRestoreLeaderService.kt b/src/main/kotlin/org/opensearch/replication/repository/RemoteClusterRestoreLeaderService.kt
index 5c06e4d4..22c279a2 100644
--- a/src/main/kotlin/org/opensearch/replication/repository/RemoteClusterRestoreLeaderService.kt
+++ b/src/main/kotlin/org/opensearch/replication/repository/RemoteClusterRestoreLeaderService.kt
@@ -17,7 +17,7 @@ import org.opensearch.replication.util.performOp
 import org.opensearch.OpenSearchException
 import org.opensearch.action.support.single.shard.SingleShardRequest
 import org.opensearch.client.node.NodeClient
-import org.opensearch.common.component.AbstractLifecycleComponent
+import org.opensearch.common.lifecycle.AbstractLifecycleComponent
 import org.opensearch.common.inject.Inject
 import org.opensearch.common.inject.Singleton
 import org.opensearch.common.lucene.store.InputStreamIndexInput
diff --git a/src/main/kotlin/org/opensearch/replication/seqno/RemoteClusterStats.kt b/src/main/kotlin/org/opensearch/replication/seqno/RemoteClusterStats.kt
index 80a9d6d2..9481543a 100644
--- a/src/main/kotlin/org/opensearch/replication/seqno/RemoteClusterStats.kt
+++ b/src/main/kotlin/org/opensearch/replication/seqno/RemoteClusterStats.kt
@@ -11,7 +11,7 @@
 
 package org.opensearch.replication.seqno
 
-import org.opensearch.common.component.AbstractLifecycleComponent
+import org.opensearch.common.lifecycle.AbstractLifecycleComponent
 import org.opensearch.common.inject.Singleton
 import org.opensearch.core.common.io.stream.StreamInput
 import org.opensearch.core.common.io.stream.StreamOutput
diff --git a/src/main/kotlin/org/opensearch/replication/seqno/RemoteClusterTranslogService.kt b/src/main/kotlin/org/opensearch/replication/seqno/RemoteClusterTranslogService.kt
index 21edfea3..bc210c72 100644
--- a/src/main/kotlin/org/opensearch/replication/seqno/RemoteClusterTranslogService.kt
+++ b/src/main/kotlin/org/opensearch/replication/seqno/RemoteClusterTranslogService.kt
@@ -13,7 +13,7 @@ package org.opensearch.replication.seqno
 
 import org.apache.logging.log4j.LogManager
 import org.opensearch.ResourceNotFoundException
-import org.opensearch.common.component.AbstractLifecycleComponent
+import org.opensearch.common.lifecycle.AbstractLifecycleComponent
 import org.opensearch.common.inject.Singleton
 import org.opensearch.index.engine.Engine
 import org.opensearch.index.shard.IndexShard
diff --git a/src/main/kotlin/org/opensearch/replication/task/index/IndexReplicationParams.kt b/src/main/kotlin/org/opensearch/replication/task/index/IndexReplicationParams.kt
index 6a758b8f..5d045b3d 100644
--- a/src/main/kotlin/org/opensearch/replication/task/index/IndexReplicationParams.kt
+++ b/src/main/kotlin/org/opensearch/replication/task/index/IndexReplicationParams.kt
@@ -13,7 +13,7 @@ package org.opensearch.replication.task.index
 
 import org.opensearch.Version
 import org.opensearch.core.ParseField
-import org.opensearch.common.Strings
+import org.opensearch.core.common.Strings
 import org.opensearch.core.common.io.stream.StreamInput
 import org.opensearch.core.common.io.stream.StreamOutput
 import org.opensearch.core.xcontent.ObjectParser
diff --git a/src/main/kotlin/org/opensearch/replication/task/index/IndexReplicationTask.kt b/src/main/kotlin/org/opensearch/replication/task/index/IndexReplicationTask.kt
index f520926b..ce3cb43a 100644
--- a/src/main/kotlin/org/opensearch/replication/task/index/IndexReplicationTask.kt
+++ b/src/main/kotlin/org/opensearch/replication/task/index/IndexReplicationTask.kt
@@ -73,8 +73,8 @@ import org.opensearch.common.logging.Loggers
 import org.opensearch.common.settings.Setting
 import org.opensearch.common.settings.Settings
 import org.opensearch.common.settings.SettingsModule
-import org.opensearch.common.unit.ByteSizeUnit
-import org.opensearch.common.unit.ByteSizeValue
+import org.opensearch.core.common.unit.ByteSizeUnit
+import org.opensearch.core.common.unit.ByteSizeValue
 import org.opensearch.core.xcontent.ToXContent
 import org.opensearch.core.xcontent.ToXContentObject
 import org.opensearch.core.xcontent.XContentBuilder
diff --git a/src/main/kotlin/org/opensearch/replication/task/shard/ShardReplicationParams.kt b/src/main/kotlin/org/opensearch/replication/task/shard/ShardReplicationParams.kt
index c1981de1..95b805b1 100644
--- a/src/main/kotlin/org/opensearch/replication/task/shard/ShardReplicationParams.kt
+++ b/src/main/kotlin/org/opensearch/replication/task/shard/ShardReplicationParams.kt
@@ -13,7 +13,7 @@ package org.opensearch.replication.task.shard
 
 import org.opensearch.Version
 import org.opensearch.core.ParseField
-import org.opensearch.common.Strings
+import org.opensearch.core.common.Strings
 import org.opensearch.core.common.io.stream.StreamInput
 import org.opensearch.core.common.io.stream.StreamOutput
 import org.opensearch.core.xcontent.ObjectParser
diff --git a/src/main/kotlin/org/opensearch/replication/util/Injectables.kt b/src/main/kotlin/org/opensearch/replication/util/Injectables.kt
index 55f45690..88e4cd48 100644
--- a/src/main/kotlin/org/opensearch/replication/util/Injectables.kt
+++ b/src/main/kotlin/org/opensearch/replication/util/Injectables.kt
@@ -11,7 +11,7 @@
 
 package org.opensearch.replication.util
 
-import org.opensearch.common.component.AbstractLifecycleComponent
+import org.opensearch.common.lifecycle.AbstractLifecycleComponent
 import org.opensearch.common.inject.Inject
 import org.opensearch.indices.IndicesService
 import org.opensearch.persistent.PersistentTasksService
diff --git a/src/main/kotlin/org/opensearch/replication/util/ValidationUtil.kt b/src/main/kotlin/org/opensearch/replication/util/ValidationUtil.kt
index 1cfa7444..1d6b8c2e 100644
--- a/src/main/kotlin/org/opensearch/replication/util/ValidationUtil.kt
+++ b/src/main/kotlin/org/opensearch/replication/util/ValidationUtil.kt
@@ -17,7 +17,7 @@ import org.opensearch.Version
 import org.opensearch.cluster.ClusterState
 import org.opensearch.cluster.metadata.IndexMetadata
 import org.opensearch.cluster.metadata.MetadataCreateIndexService
-import org.opensearch.common.Strings
+import org.opensearch.core.common.Strings
 import org.opensearch.common.ValidationException
 import org.opensearch.common.settings.Settings
 import org.opensearch.env.Environment
diff --git a/src/test/kotlin/org/opensearch/replication/MultiClusterRestTestCase.kt b/src/test/kotlin/org/opensearch/replication/MultiClusterRestTestCase.kt
index 0dd38a22..523ff913 100644
--- a/src/test/kotlin/org/opensearch/replication/MultiClusterRestTestCase.kt
+++ b/src/test/kotlin/org/opensearch/replication/MultiClusterRestTestCase.kt
@@ -37,7 +37,6 @@ import org.opensearch.client.ResponseException
 import org.opensearch.client.RestClient
 import org.opensearch.client.RestClientBuilder
 import org.opensearch.client.RestHighLevelClient
-import org.opensearch.common.Strings
 import org.opensearch.common.io.PathUtils
 import org.opensearch.common.settings.Settings
 import org.opensearch.common.unit.TimeValue
@@ -416,7 +415,7 @@ abstract class MultiClusterRestTestCase : OpenSearchTestCase() {
         clearCommand.endObject()
         if (mustClear) {
             val request = Request("PUT", "/_cluster/settings")
-            request.setJsonEntity(Strings.toString(clearCommand))
+            request.setJsonEntity(clearCommand.toString())
             testCluster.lowLevelClient.performRequest(request)
         }
     }
diff --git a/src/test/kotlin/org/opensearch/replication/ReplicationHelpers.kt b/src/test/kotlin/org/opensearch/replication/ReplicationHelpers.kt
index f5c9ff24..4a0c6a3a 100644
--- a/src/test/kotlin/org/opensearch/replication/ReplicationHelpers.kt
+++ b/src/test/kotlin/org/opensearch/replication/ReplicationHelpers.kt
@@ -25,7 +25,7 @@ import org.opensearch.common.settings.Settings
 import org.opensearch.common.unit.TimeValue
 import org.opensearch.core.xcontent.DeprecationHandler
 import org.opensearch.core.xcontent.NamedXContentRegistry
-import org.opensearch.common.xcontent.XContentType
+import org.opensearch.core.xcontent.MediaType
 import org.opensearch.test.OpenSearchTestCase.assertBusy
 import org.opensearch.test.rest.OpenSearchRestTestCase
 import org.junit.Assert
@@ -96,7 +96,7 @@ fun RestHighLevelClient.startReplication(request: StartReplicationRequest,
         waitForNoInitializingShards()
 }
 fun getAckResponse(lowLevelResponse: Response): AcknowledgedResponse {
-    val xContentType = XContentType.fromMediaType(lowLevelResponse.entity.contentType.value)
+    val xContentType = MediaType.fromMediaType(lowLevelResponse.entity.contentType.value)
     val xcp = xContentType.xContent().createParser(NamedXContentRegistry.EMPTY, DeprecationHandler.IGNORE_DEPRECATIONS,
             lowLevelResponse.entity.content)
     return AcknowledgedResponse.fromXContent(xcp)