diff --git a/x-pack/plugin/core/src/main/java/org/elasticsearch/xpack/core/common/validation/SourceDestValidator.java b/x-pack/plugin/core/src/main/java/org/elasticsearch/xpack/core/common/validation/SourceDestValidator.java
index 4392b868cabb7..9adb668265151 100644
--- a/x-pack/plugin/core/src/main/java/org/elasticsearch/xpack/core/common/validation/SourceDestValidator.java
+++ b/x-pack/plugin/core/src/main/java/org/elasticsearch/xpack/core/common/validation/SourceDestValidator.java
@@ -71,7 +71,8 @@ public final class SourceDestValidator {
         + "alias [{0}], license is not active";
     public static final String REMOTE_SOURCE_INDICES_NOT_SUPPORTED = "remote source indices are not supported";
     public static final String REMOTE_CLUSTERS_TOO_OLD =
-        "remote clusters are expected to run at least version [{0}] (reason: [{1}]), but the following clusters were too old: [{2}]";
+        "remote clusters are expected to run at least transport version [{0}] (reason: [{1}]),"
+            + " but the following clusters were too old: [{2}]";
     public static final String PIPELINE_MISSING = "Pipeline with id [{0}] could not be found";
 
     private final IndexNameExpressionResolver indexNameExpressionResolver;
diff --git a/x-pack/plugin/core/src/main/java/org/elasticsearch/xpack/core/transform/TransformConfigVersion.java b/x-pack/plugin/core/src/main/java/org/elasticsearch/xpack/core/transform/TransformConfigVersion.java
index 71dfd40e641c4..acc10008cd40f 100644
--- a/x-pack/plugin/core/src/main/java/org/elasticsearch/xpack/core/transform/TransformConfigVersion.java
+++ b/x-pack/plugin/core/src/main/java/org/elasticsearch/xpack/core/transform/TransformConfigVersion.java
@@ -311,7 +311,7 @@ public static TransformConfigVersion fromVersion(Version version) {
         }
         return fromId(version.id);
     }
-    
+
     public static TransformConfigVersion getMinTransformConfigVersion(DiscoveryNodes nodes) {
         return getMinMaxTransformConfigVersion(nodes).v1();
     }
diff --git a/x-pack/plugin/core/src/test/java/org/elasticsearch/xpack/core/common/validation/RemoteClusterMinimumVersionValidationTests.java b/x-pack/plugin/core/src/test/java/org/elasticsearch/xpack/core/common/validation/RemoteClusterMinimumVersionValidationTests.java
index 5143ab52247b7..57166d996d124 100644
--- a/x-pack/plugin/core/src/test/java/org/elasticsearch/xpack/core/common/validation/RemoteClusterMinimumVersionValidationTests.java
+++ b/x-pack/plugin/core/src/test/java/org/elasticsearch/xpack/core/common/validation/RemoteClusterMinimumVersionValidationTests.java
@@ -82,8 +82,8 @@ public void testValidate_OneRemoteClusterVersionTooLow() {
                 ctx -> assertThat(
                     ctx.getValidationException().validationErrors(),
                     contains(
-                        "remote clusters are expected to run at least version [7.11.0] (reason: [some reason]), "
-                            + "but the following clusters were too old: [cluster-A (7.10.2)]"
+                        "remote clusters are expected to run at least transport version [7110099] (reason: [some reason]), "
+                            + "but the following clusters were too old: [cluster-A (7100099)]"
                     )
                 )
             )
@@ -100,8 +100,8 @@ public void testValidate_TwoRemoteClusterVersionsTooLow() {
                 ctx -> assertThat(
                     ctx.getValidationException().validationErrors(),
                     contains(
-                        "remote clusters are expected to run at least version [7.11.2] (reason: [some reason]), "
-                            + "but the following clusters were too old: [cluster-A (7.10.2), cluster-B (7.11.0)]"
+                        "remote clusters are expected to run at least transport version [7120099] (reason: [some reason]), "
+                            + "but the following clusters were too old: [cluster-A (7100099), cluster-B (7110099)]"
                     )
                 )
             )
diff --git a/x-pack/plugin/core/src/test/java/org/elasticsearch/xpack/core/transform/transforms/TransformConfigTests.java b/x-pack/plugin/core/src/test/java/org/elasticsearch/xpack/core/transform/transforms/TransformConfigTests.java
index 840fb912751e2..ba2cd0ba04312 100644
--- a/x-pack/plugin/core/src/test/java/org/elasticsearch/xpack/core/transform/transforms/TransformConfigTests.java
+++ b/x-pack/plugin/core/src/test/java/org/elasticsearch/xpack/core/transform/transforms/TransformConfigTests.java
@@ -7,7 +7,7 @@
 
 package org.elasticsearch.xpack.core.transform.transforms;
 
-import org.elasticsearch.Version;
+import org.elasticsearch.TransportVersions;
 import org.elasticsearch.common.Strings;
 import org.elasticsearch.common.bytes.BytesReference;
 import org.elasticsearch.common.io.stream.BytesStreamOutput;
@@ -603,7 +603,7 @@ public void testRewriteForUpdate() throws IOException {
                 "max_page_search_size": 111
               },
               "version": "%s"
-            }""", Version.V_7_6_0.toString());
+            }""", TransformConfigVersion.V_7_6_0.toString());
 
         TransformConfig transformConfig = createTransformConfigFromString(pivotTransform, "body_id", true);
         TransformConfig transformConfigRewritten = TransformConfig.rewriteForUpdate(transformConfig);
@@ -645,7 +645,7 @@ public void testRewriteForUpdateAlignCheckpoints() throws IOException {
                 }
               },
               "version": "%s"
-            }""", Version.V_7_12_0.toString());
+            }""", TransformConfigVersion.V_7_12_0.toString());
 
         TransformConfig transformConfig = createTransformConfigFromString(pivotTransform, "body_id", true);
         TransformConfig transformConfigRewritten = TransformConfig.rewriteForUpdate(transformConfig);
@@ -693,7 +693,7 @@ public void testRewriteForUpdateMaxPageSizeSearchConflicting() throws IOExceptio
                 "max_page_search_size": 555
               },
               "version": "%s"
-            }""", Version.V_7_5_0.toString());
+            }""", TransformConfigVersion.V_7_5_0.toString());
 
         TransformConfig transformConfig = createTransformConfigFromString(pivotTransform, "body_id", true);
         TransformConfig transformConfigRewritten = TransformConfig.rewriteForUpdate(transformConfig);
@@ -828,7 +828,7 @@ public void testGetAdditionalSourceDestValidations_WithRuntimeMappings() throws
         assertThat(additiionalValidations.get(0), is(instanceOf(RemoteClusterMinimumVersionValidation.class)));
         RemoteClusterMinimumVersionValidation remoteClusterMinimumVersionValidation =
             (RemoteClusterMinimumVersionValidation) additiionalValidations.get(0);
-        assertThat(remoteClusterMinimumVersionValidation.getMinExpectedTransportVersion(), is(equalTo(Version.V_7_12_0)));
+        assertThat(remoteClusterMinimumVersionValidation.getMinExpectedTransportVersion(), is(equalTo(TransportVersions.V_7_12_0)));
         assertThat(remoteClusterMinimumVersionValidation.getReason(), is(equalTo("source.runtime_mappings field was set")));
     }