diff --git a/dhp-workflows/dhp-propagation/src/main/java/eu/dnetlib/dhp/SerializableSupplier.java b/dhp-workflows/dhp-propagation/src/main/java/eu/dnetlib/dhp/SerializableSupplier.java
deleted file mode 100644
index b890c141d..000000000
--- a/dhp-workflows/dhp-propagation/src/main/java/eu/dnetlib/dhp/SerializableSupplier.java
+++ /dev/null
@@ -1,4 +0,0 @@
-package eu.dnetlib.dhp;
-
-public class SerializableSupplier {
-}