diff --git a/app/core/src/test/java/stirling/software/SPDF/controller/api/MergeControllerTest.java b/app/core/src/test/java/stirling/software/SPDF/controller/api/MergeControllerTest.java
index 5d043b8e7..48048d6ec 100644
--- a/app/core/src/test/java/stirling/software/SPDF/controller/api/MergeControllerTest.java
+++ b/app/core/src/test/java/stirling/software/SPDF/controller/api/MergeControllerTest.java
@@ -283,7 +283,7 @@ class MergeControllerTest {
         @DisplayName("Returns empty document when input list is empty")
         void testMergeDocuments_EmptyList_ReturnsEmptyDocument() throws IOException {
             // Arrange
-            List<PDDocument> documents = List.of();
+            List<PDDocument> documents = Collections.emptyList();
 
             when(pdfDocumentFactory.createNewDocument()).thenReturn(mockMergedDocument);