diff --git a/dhp-workflows/dhp-rdfconverter/src/main/resources/eu/dnetlib/dhp/rdfconverter/bioschema/oozie_app/workflow.xml b/dhp-workflows/dhp-rdfconverter/src/main/resources/eu/dnetlib/dhp/rdfconverter/bioschema/oozie_app/workflow.xml
index 9ab3dd603..86508d25a 100644
--- a/dhp-workflows/dhp-rdfconverter/src/main/resources/eu/dnetlib/dhp/rdfconverter/bioschema/oozie_app/workflow.xml
+++ b/dhp-workflows/dhp-rdfconverter/src/main/resources/eu/dnetlib/dhp/rdfconverter/bioschema/oozie_app/workflow.xml
@@ -37,6 +37,11 @@
             <value>2G</value>
             <description>memory for individual executor</description>
         </property>
+        <property>
+            <name>sparkExecutorCores</name>
+            <value>4</value>
+            <description>number of cores used by single executor</description>
+        </property>
         <property>
             <name>spark2ExtraListeners</name>
             <value>com.cloudera.spark.lineage.NavigatorAppListener</value>
@@ -73,8 +78,8 @@
             <class>eu.dnetlib.dhp.rdfconverter.bioschema.SparkRdfToDatacite</class>
             <jar>dhp-rdfconverter-${projectVersion}.jar</jar>
             <spark-opts>
-                --conf spark.dynamicAllocation.enabled=true
-                --conf spark.dynamicAllocation.maxExecutors=${spark2RdfConversionMaxExecutors}
+                --executor-cores=${sparkExecutorCores}
+                --driver-memory=${sparkDriverMemory}
                 --executor-memory=${sparkExecutorMemory}
                 --driver-memory=${sparkDriverMemory}
                 --conf spark.extraListeners=${spark2ExtraListeners}