diff --git a/Jenkinsfile b/Jenkinsfile
index c96bcdaf..7702d6e5 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -127,8 +127,9 @@ pipeline {
                         )
                         sh 'sbt stage'
                         sh 'pigz -d ../merged-kg.nt.gz'
-                        sh './target/universal/stage/bin/blazegraph-runner load --informat=ntriples --journal=merged-kg.jnl --use-ontology-graph=true ../merged-kg.nt'
-                        sh 'pigz ../merged-kg.jnl'
+                        sh 'export JAVA_OPTS=-Xmx32G && ../target/universal/stage/bin/blazegraph-runner load --informat=ntriples --journal=merged-kg.jnl --use-ontology-graph=true ../merged-kg.nt'
+                        sh 'pigz merged-kg.jnl'
+                        sh 'pigz ../merged-kg.nt.gz'
                 }
             }
         }