diff --git a/pom.xml b/pom.xml
index e962d3e0a..f63ccb11a 100644
--- a/pom.xml
+++ b/pom.xml
@@ -21,7 +21,7 @@
         <commons_compress_version>1.26.0</commons_compress_version>
         <guava_version>32.0.1-jre</guava_version>
         <hapi_fhir_version>6.4.1</hapi_fhir_version>
-        <validator_test_case_version>1.5.8</validator_test_case_version>
+        <validator_test_case_version>1.5.9-SNAPSHOT</validator_test_case_version>
         <jackson_version>2.17.0</jackson_version>
         <junit_jupiter_version>5.9.2</junit_jupiter_version>
         <junit_platform_launcher_version>1.8.2</junit_platform_launcher_version>