diff --git a/spring-data-jdbc/src/test/java/org/springframework/data/jdbc/core/convert/MappingJdbcConverterUnitTests.java b/spring-data-jdbc/src/test/java/org/springframework/data/jdbc/core/convert/MappingJdbcConverterUnitTests.java
index ba9bb39e3..dbede97e3 100644
--- a/spring-data-jdbc/src/test/java/org/springframework/data/jdbc/core/convert/MappingJdbcConverterUnitTests.java
+++ b/spring-data-jdbc/src/test/java/org/springframework/data/jdbc/core/convert/MappingJdbcConverterUnitTests.java
@@ -75,6 +75,9 @@ class MappingJdbcConverterUnitTests {
 			new JdbcCustomConversions(List.of(CustomIdToLong.INSTANCE)), //
 			typeFactory //
 	);
+	{
+		context.setSimpleTypeHolder(converter.getConversions().getSimpleTypeHolder());
+	}
 
 	@Test // DATAJDBC-104, DATAJDBC-1384
 	void testTargetTypesForPropertyType() {