diff --git a/server/src/internalClusterTest/java/org/opensearch/index/ShardIndexingPressureSettingsIT.java b/server/src/internalClusterTest/java/org/opensearch/index/ShardIndexingPressureSettingsIT.java
index ea8749963aa63..e1316db46fef0 100644
--- a/server/src/internalClusterTest/java/org/opensearch/index/ShardIndexingPressureSettingsIT.java
+++ b/server/src/internalClusterTest/java/org/opensearch/index/ShardIndexingPressureSettingsIT.java
@@ -403,6 +403,8 @@ public void testShardIndexingPressureEnforcedEnabledDisabledSetting() throws Exc
         secondSuccessFuture = client(coordinatingOnlyNode).bulk(bulkRequest);
         Thread.sleep(25);
 
+        waitForTwoOutstandingRequests(coordinatingShardTracker);
+
         // This request breaches the threshold and hence will be rejected
         expectThrows(OpenSearchRejectedExecutionException.class, () -> client(coordinatingOnlyNode).bulk(bulkRequest).actionGet());
 
@@ -636,6 +638,7 @@ public void testShardIndexingPressureLastSuccessfulSettingsUpdate() throws Excep
                 IndexingPressureService.class,
                 coordinatingOnlyNode
             ).getShardIndexingPressure().getShardIndexingPressureTracker(shardId);
+            waitForTwoOutstandingRequests(coordinatingShardTracker);
             expectThrows(OpenSearchRejectedExecutionException.class, () -> client(coordinatingOnlyNode).bulk(bulkRequest).actionGet());
             assertEquals(1, coordinatingShardTracker.getCoordinatingOperationTracker().getRejectionTracker().getTotalRejections());
             assertEquals(
@@ -648,6 +651,7 @@ public void testShardIndexingPressureLastSuccessfulSettingsUpdate() throws Excep
             ShardIndexingPressureTracker primaryShardTracker = internalCluster().getInstance(IndexingPressureService.class, primaryName)
                 .getShardIndexingPressure()
                 .getShardIndexingPressureTracker(shardId);
+            waitForTwoOutstandingRequests(primaryShardTracker);
             expectThrows(OpenSearchRejectedExecutionException.class, () -> client(primaryName).bulk(bulkRequest).actionGet());
             assertEquals(1, primaryShardTracker.getCoordinatingOperationTracker().getRejectionTracker().getTotalRejections());
             assertEquals(
@@ -920,6 +924,12 @@ private String getCoordinatingOnlyNode() {
             .getName();
     }
 
+    private static void waitForTwoOutstandingRequests(ShardIndexingPressureTracker tracker) throws Exception {
+        assertBusy(
+            () -> { assertEquals(tracker.getCoordinatingOperationTracker().getPerformanceTracker().getTotalOutstandingRequests(), 2); }
+        );
+    }
+
     private void restartCluster(Settings settings) throws Exception {
         internalCluster().fullRestart(new InternalTestCluster.RestartCallback() {
             @Override