diff --git a/test/src/custom_eks_opensearch_test.go b/test/src/custom_eks_opensearch_test.go
index 386de6e..77fb0eb 100644
--- a/test/src/custom_eks_opensearch_test.go
+++ b/test/src/custom_eks_opensearch_test.go
@@ -264,7 +264,7 @@ func (suite *CustomEKSOpenSearchTestSuite) TestCustomEKSAndOpenSearch() {
 
 	// Perform assertions on the OpenSearch domain configuration
 	suite.Assert().Equal(varsConfigOpenSearch["domain_name"].(string), *describeOpenSearchDomainOutput.DomainStatus.DomainName)
-	suite.Assert().Equal(int32(4), *describeOpenSearchDomainOutput.DomainStatus.ClusterConfig.InstanceCount)
+	suite.Assert().Equal(int32(3), *describeOpenSearchDomainOutput.DomainStatus.ClusterConfig.InstanceCount)
 	suite.Assert().Equal(types.OpenSearchPartitionInstanceType("t3.small.search"), describeOpenSearchDomainOutput.DomainStatus.ClusterConfig.InstanceType)
 	suite.Assert().Equal(varsConfigOpenSearch["vpc_id"].(string), *describeOpenSearchDomainOutput.DomainStatus.VPCOptions.VPCId)