diff --git a/processing/src/main/java/edu/harvard/hms/dbmi/avillach/hpds/processing/dictionary/Concept.java b/processing/src/main/java/edu/harvard/hms/dbmi/avillach/hpds/processing/dictionary/Concept.java
index 6fe4f706..cef0fcf8 100644
--- a/processing/src/main/java/edu/harvard/hms/dbmi/avillach/hpds/processing/dictionary/Concept.java
+++ b/processing/src/main/java/edu/harvard/hms/dbmi/avillach/hpds/processing/dictionary/Concept.java
@@ -1,6 +1,9 @@
 package edu.harvard.hms.dbmi.avillach.hpds.processing.dictionary;
 
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
+
 import java.util.Map;
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public record Concept(String type, String conceptPath, String name, String display, String dataset, String description, Map<String, String> meta) {
 }
diff --git a/processing/src/test/java/edu/harvard/hms/dbmi/avillach/hpds/processing/dictionary/ConceptTest.java b/processing/src/test/java/edu/harvard/hms/dbmi/avillach/hpds/processing/dictionary/ConceptTest.java
new file mode 100644
index 00000000..733f46fa
--- /dev/null
+++ b/processing/src/test/java/edu/harvard/hms/dbmi/avillach/hpds/processing/dictionary/ConceptTest.java
@@ -0,0 +1,25 @@
+package edu.harvard.hms.dbmi.avillach.hpds.processing.dictionary;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import org.junit.jupiter.api.Test;
+
+import java.util.List;
+import java.util.Map;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+public class ConceptTest {
+
+    @Test
+    public void jsonSerialization() throws JsonProcessingException {
+        Concept[] concepts = new Concept[]{new Concept("Categorical", "\\demographics\\age\\", "age", "AGE", null, "patient age", Map.of("drs_uri", "[\"a-drs.uri\", \"another-drs.uri\"]"))};
+        ObjectMapper objectMapper = new ObjectMapper();
+
+        String serialized = objectMapper.writeValueAsString(concepts);
+
+        Concept[] deserialized = objectMapper.readValue(serialized, Concept[].class);
+
+        assertEquals(List.of(concepts), List.of(deserialized));
+    }
+}
\ No newline at end of file