diff --git a/src/main/java/gov/cms/madie/cqllibraryservice/dto/LibraryListDTO.java b/src/main/java/gov/cms/madie/cqllibraryservice/dto/LibraryListDTO.java
index d0d4d4e..3b319dc 100644
--- a/src/main/java/gov/cms/madie/cqllibraryservice/dto/LibraryListDTO.java
+++ b/src/main/java/gov/cms/madie/cqllibraryservice/dto/LibraryListDTO.java
@@ -14,6 +14,7 @@
 import lombok.experimental.SuperBuilder;
 import org.springframework.data.mongodb.core.mapping.Document;
 import org.springframework.data.mongodb.core.mapping.DocumentReference;
+import java.time.Instant;
 
 @Data
 @Document
@@ -26,6 +27,8 @@ public class LibraryListDTO {
 
   private String cqlLibraryName;
 
+  private Instant createdAt;
+
   @NotBlank(message = "Model is required")
   @EnumValidator(
       enumClass = ModelType.class,