diff --git a/airbyte-workers/src/main/java/io/airbyte/workers/internal/state_aggregator/SingleStateAggregator.java b/airbyte-workers/src/main/java/io/airbyte/workers/internal/state_aggregator/SingleStateAggregator.java
index 09106a08c1e2..0cfe422ea1f7 100644
--- a/airbyte-workers/src/main/java/io/airbyte/workers/internal/state_aggregator/SingleStateAggregator.java
+++ b/airbyte-workers/src/main/java/io/airbyte/workers/internal/state_aggregator/SingleStateAggregator.java
@@ -24,6 +24,13 @@ public State getAggregated() {
     if (state.getType() == null || state.getType() == AirbyteStateType.LEGACY) {
       return new State().withState(state.getData());
     } else {
+      /**
+       * The destination emit a Legacy state in order to be retro-compatible with old platform. If we are
+       * running this code, we know that the platform has been upgraded and we can thus discard the legacy
+       * state. Keeping the legacy state is causing issue because of its size
+       * (https://github.com/airbytehq/oncall/issues/731)
+       */
+      state.setData(null);
       return new State()
           .withState(Jsons.jsonNode(List.of(state)));
     }
diff --git a/airbyte-workers/src/main/java/io/airbyte/workers/internal/state_aggregator/StreamStateAggregator.java b/airbyte-workers/src/main/java/io/airbyte/workers/internal/state_aggregator/StreamStateAggregator.java
index d55563efe0ec..4d3247b2549d 100644
--- a/airbyte-workers/src/main/java/io/airbyte/workers/internal/state_aggregator/StreamStateAggregator.java
+++ b/airbyte-workers/src/main/java/io/airbyte/workers/internal/state_aggregator/StreamStateAggregator.java
@@ -17,6 +17,13 @@ class StreamStateAggregator implements StateAggregator {
 
   @Override
   public void ingest(final AirbyteStateMessage stateMessage) {
+    /**
+     * The destination emit a Legacy state in order to be retro-compatible with old platform. If we are
+     * running this code, we know that the platform has been upgraded and we can thus discard the legacy
+     * state. Keeping the legacy state is causing issue because of its size
+     * (https://github.com/airbytehq/oncall/issues/731)
+     */
+    stateMessage.setData(null);
     aggregatedState.put(stateMessage.getStream().getStreamDescriptor(), stateMessage);
   }
 
diff --git a/airbyte-workers/src/test/java/io/airbyte/workers/internal/state_aggregator/StateAggregatorTest.java b/airbyte-workers/src/test/java/io/airbyte/workers/internal/state_aggregator/StateAggregatorTest.java
index bd591be29b13..83761bf5b194 100644
--- a/airbyte-workers/src/test/java/io/airbyte/workers/internal/state_aggregator/StateAggregatorTest.java
+++ b/airbyte-workers/src/test/java/io/airbyte/workers/internal/state_aggregator/StateAggregatorTest.java
@@ -92,13 +92,16 @@ void testGlobalState() {
     final AirbyteStateMessage state1 = getGlobalMessage(1);
     final AirbyteStateMessage state2 = getGlobalMessage(2);
 
-    stateAggregator.ingest(state1);
+    final AirbyteStateMessage state1NoData = getGlobalMessage(1).withData(null);
+    final AirbyteStateMessage state2NoData = getGlobalMessage(2).withData(null);
+
+    stateAggregator.ingest(Jsons.object(Jsons.jsonNode(state1), AirbyteStateMessage.class));
     Assertions.assertThat(stateAggregator.getAggregated()).isEqualTo(new State()
-        .withState(Jsons.jsonNode(List.of(state1))));
+        .withState(Jsons.jsonNode(List.of(state1NoData))));
 
-    stateAggregator.ingest(state2);
+    stateAggregator.ingest(Jsons.object(Jsons.jsonNode(state2), AirbyteStateMessage.class));
     Assertions.assertThat(stateAggregator.getAggregated()).isEqualTo(new State()
-        .withState(Jsons.jsonNode(List.of(state2))));
+        .withState(Jsons.jsonNode(List.of(state2NoData))));
   }
 
   @Test
@@ -126,19 +129,23 @@ void testStreamStateWithFeatureFlagOn() {
     final AirbyteStateMessage state2 = getStreamMessage("b", 2);
     final AirbyteStateMessage state3 = getStreamMessage("b", 3);
 
+    final AirbyteStateMessage state1NoData = getStreamMessage("a", 1).withData(null);
+    final AirbyteStateMessage state2NoData = getStreamMessage("b", 2).withData(null);
+    final AirbyteStateMessage state3NoData = getStreamMessage("b", 3).withData(null);
+
     stateAggregator = new DefaultStateAggregator(USE_STREAM_CAPABLE_STATE);
 
-    stateAggregator.ingest(state1);
+    stateAggregator.ingest(Jsons.object(Jsons.jsonNode(state1), AirbyteStateMessage.class));
     Assertions.assertThat(stateAggregator.getAggregated()).isEqualTo(new State()
-        .withState(Jsons.jsonNode(List.of(state1))));
+        .withState(Jsons.jsonNode(List.of(state1NoData))));
 
-    stateAggregator.ingest(state2);
+    stateAggregator.ingest(Jsons.object(Jsons.jsonNode(state2), AirbyteStateMessage.class));
     Assertions.assertThat(stateAggregator.getAggregated()).isEqualTo(new State()
-        .withState(Jsons.jsonNode(List.of(state2, state1))));
+        .withState(Jsons.jsonNode(List.of(state2NoData, state1NoData))));
 
-    stateAggregator.ingest(state3);
+    stateAggregator.ingest(Jsons.object(Jsons.jsonNode(state3), AirbyteStateMessage.class));
     Assertions.assertThat(stateAggregator.getAggregated()).isEqualTo(new State()
-        .withState(Jsons.jsonNode(List.of(state3, state1))));
+        .withState(Jsons.jsonNode(List.of(state3NoData, state1NoData))));
   }
 
   private AirbyteStateMessage getNullMessage(final int stateValue) {
@@ -158,7 +165,8 @@ private AirbyteStateMessage getGlobalMessage(final int stateValue) {
                         .withStreamDescriptor(
                             new StreamDescriptor()
                                 .withName("test"))
-                        .withStreamState(Jsons.jsonNode(stateValue)))));
+                        .withStreamState(Jsons.jsonNode(stateValue)))))
+        .withData(Jsons.jsonNode("HelloWorld"));
   }
 
   private AirbyteStateMessage getStreamMessage(final String streamName, final int stateValue) {
@@ -168,7 +176,8 @@ private AirbyteStateMessage getStreamMessage(final String streamName, final int
                 .withStreamDescriptor(
                     new StreamDescriptor()
                         .withName(streamName))
-                .withStreamState(Jsons.jsonNode(stateValue)));
+                .withStreamState(Jsons.jsonNode(stateValue)))
+        .withData(Jsons.jsonNode("Hello"));
   }
 
   private AirbyteStateMessage getEmptyMessage(final AirbyteStateType stateType) {