diff --git a/build-tools-internal/src/integTest/groovy/org/elasticsearch/gradle/internal/transport/TransportVersionGenerationFuncTest.groovy b/build-tools-internal/src/integTest/groovy/org/elasticsearch/gradle/internal/transport/TransportVersionGenerationFuncTest.groovy
index cda7fc665782c..d1ca9eae48b97 100644
--- a/build-tools-internal/src/integTest/groovy/org/elasticsearch/gradle/internal/transport/TransportVersionGenerationFuncTest.groovy
+++ b/build-tools-internal/src/integTest/groovy/org/elasticsearch/gradle/internal/transport/TransportVersionGenerationFuncTest.groovy
@@ -90,6 +90,9 @@ class TransportVersionGenerationFuncTest extends AbstractTransportVersionFuncTes
         assertUpperBound("9.2", "new_tv,8124000")
     }
 
+    /*
+    temporarily muted, see https://github.com/elastic/elasticsearch/pull/135226
+
     def "invalid changes to a upper bounds should be reverted"() {
         given:
         transportVersionUpperBound("9.2", "modification", "9000000")
@@ -144,7 +147,7 @@ class TransportVersionGenerationFuncTest extends AbstractTransportVersionFuncTes
         assertReferableDefinitionDoesNotExist("test_tv")
         assertUpperBound("9.2", "existing_92,8123000")
         assertUpperBound("9.1", "existing_92,8012001")
-    }
+    }*/
 
     def "a reference can be renamed"() {
         given:
@@ -242,8 +245,11 @@ class TransportVersionGenerationFuncTest extends AbstractTransportVersionFuncTes
     def "unreferenced definitions are removed"() {
         given:
         referableTransportVersion("test_tv", "8124000,8012002")
+        /*
+        TODO: reset of upper bounds
         transportVersionUpperBound("9.2", "test_tv", "8124000")
         transportVersionUpperBound("9.1", "test_tv", "8012002")
+         */
 
         when:
         def result = runGenerateAndValidateTask().build()
@@ -477,6 +483,8 @@ class TransportVersionGenerationFuncTest extends AbstractTransportVersionFuncTes
         assertUpperBound("9.2", "new_tv,8124000")
     }
 
+    /*
+    TODO: reset of upper bounds
     def "deleted upper bounds files are restored"() {
         given:
         file("myserver/src/main/resources/transport/upper_bounds/9.2.csv").delete()
@@ -487,7 +495,7 @@ class TransportVersionGenerationFuncTest extends AbstractTransportVersionFuncTes
         then:
         assertGenerateAndValidateSuccess(result)
         assertUpperBound("9.2", "existing_92,8123000")
-    }
+    }*/
 
     def "upper bounds files must exist for backport branches"() {
         when:
diff --git a/build-tools-internal/src/main/java/org/elasticsearch/gradle/internal/transport/GenerateTransportVersionDefinitionTask.java b/build-tools-internal/src/main/java/org/elasticsearch/gradle/internal/transport/GenerateTransportVersionDefinitionTask.java
index 7d5baa1b5fc64..f0d910730dce9 100644
--- a/build-tools-internal/src/main/java/org/elasticsearch/gradle/internal/transport/GenerateTransportVersionDefinitionTask.java
+++ b/build-tools-internal/src/main/java/org/elasticsearch/gradle/internal/transport/GenerateTransportVersionDefinitionTask.java
@@ -107,7 +107,8 @@ public void run() throws IOException {
 
         getLogger().lifecycle("Generating transport version name: " + targetDefinitionName);
         if (targetDefinitionName.isEmpty()) {
-            resetAllUpperBounds(resources);
+            // TODO: resetting upper bounds needs to be done locally, otherwise it pulls in some (incomplete) changes from upstream main
+            // resetAllUpperBounds(resources);
         } else {
             List<TransportVersionId> ids = updateUpperBounds(resources, upstreamUpperBounds, targetUpperBoundNames, targetDefinitionName);
             // (Re)write the definition file.