diff --git a/api/management-model/build.gradle.kts b/api/management-model/build.gradle.kts
index ec78abe5d5..c6c808f810 100644
--- a/api/management-model/build.gradle.kts
+++ b/api/management-model/build.gradle.kts
@@ -56,6 +56,10 @@ openApiGenerate {
   additionalProperties.put("apiNamePrefix", "Polaris")
   additionalProperties.put("apiNameSuffix", "Api")
   additionalProperties.put("metricsPrefix", "polaris")
+  additionalProperties.put(
+    "additionalModelTypeAnnotations",
+    "@com.fasterxml.jackson.annotation.JsonInclude(com.fasterxml.jackson.annotation.JsonInclude.Include.NON_NULL)",
+  )
   serverVariables = mapOf("basePath" to "api/v1")
 }
 
diff --git a/api/management-model/src/test/java/org/apache/polaris/core/admin/model/CatalogSerializationTest.java b/api/management-model/src/test/java/org/apache/polaris/core/admin/model/CatalogSerializationTest.java
index 4648567bf0..3620da4178 100644
--- a/api/management-model/src/test/java/org/apache/polaris/core/admin/model/CatalogSerializationTest.java
+++ b/api/management-model/src/test/java/org/apache/polaris/core/admin/model/CatalogSerializationTest.java
@@ -66,14 +66,8 @@ public void testJsonFormat() throws JsonProcessingException {
             "{\"type\":\"INTERNAL\","
                 + "\"name\":\"test-catalog\","
                 + "\"properties\":{\"default-base-location\":\"s3://test/\"},"
-                + "\"createTimestamp\":null,"
-                + "\"lastUpdateTimestamp\":null,"
-                + "\"entityVersion\":null,"
                 + "\"storageConfigInfo\":{"
                 + "\"roleArn\":\"arn:aws:iam::123456789012:role/test-role\","
-                + "\"externalId\":null,"
-                + "\"userArn\":null,"
-                + "\"region\":null,"
                 + "\"storageType\":\"S3\","
                 + "\"allowedLocations\":[]"
                 + "}}");