diff --git a/org.hl7.fhir.validation/pom.xml b/org.hl7.fhir.validation/pom.xml
index bdb31ba9f..da3e72350 100644
--- a/org.hl7.fhir.validation/pom.xml
+++ b/org.hl7.fhir.validation/pom.xml
@@ -167,6 +167,13 @@
             <scope>test</scope>
         </dependency>
 
+        <dependency>
+            <groupId>com.atlassian.commonmark</groupId>
+            <artifactId>commonmark</artifactId>
+            <optional>true</optional>
+            <scope>test</scope>
+        </dependency>
+
         <dependency>
             <groupId>io.javalin</groupId>
             <artifactId>javalin</artifactId>