diff --git a/src/main/java/ch/psi/daq/rest/queries/AbstractQuery.java b/src/main/java/ch/psi/daq/rest/queries/AbstractQuery.java
index bcf67c3..8f58c6d 100644
--- a/src/main/java/ch/psi/daq/rest/queries/AbstractQuery.java
+++ b/src/main/java/ch/psi/daq/rest/queries/AbstractQuery.java
@@ -39,6 +39,8 @@ import ch.psi.daq.hazelcast.query.range.QueryRange;
 })
 public abstract class AbstractQuery implements Query {
 
+   private static final long serialVersionUID = 1L;
+
    private static Logger logger = LoggerFactory.getLogger(AbstractQuery.class);
 
    private List<String> channels;
diff --git a/src/main/java/ch/psi/daq/rest/queries/PulseRangeQuery.java b/src/main/java/ch/psi/daq/rest/queries/PulseRangeQuery.java
index 0237c95..87b5378 100644
--- a/src/main/java/ch/psi/daq/rest/queries/PulseRangeQuery.java
+++ b/src/main/java/ch/psi/daq/rest/queries/PulseRangeQuery.java
@@ -19,6 +19,8 @@ import ch.psi.daq.hazelcast.query.range.QueryRange;
  */
 public class PulseRangeQuery extends AbstractQuery {
 
+   
+   private static final long serialVersionUID = 1L;
 
    /**
     * Constructor.
diff --git a/src/main/java/ch/psi/daq/rest/queries/TimeRangeQuery.java b/src/main/java/ch/psi/daq/rest/queries/TimeRangeQuery.java
index af4c1cc..53f42ae 100644
--- a/src/main/java/ch/psi/daq/rest/queries/TimeRangeQuery.java
+++ b/src/main/java/ch/psi/daq/rest/queries/TimeRangeQuery.java
@@ -20,7 +20,8 @@ import ch.psi.daq.hazelcast.query.bin.BinningStrategy;
 import ch.psi.daq.hazelcast.query.range.QueryRange;
 
 public class TimeRangeQuery extends AbstractQuery {
-
+   
+   private static final long serialVersionUID = 1L;
 
    public static final String DATE_FORMAT_STRING = "yyyy/MM/dd hh:mm:ss.SSS";
    private static final SimpleDateFormat DATE_FORMAT = new SimpleDateFormat(DATE_FORMAT_STRING);
diff --git a/src/test/resources/test-requests.txt b/src/test/resources/test-requests.txt
index aca65fb..baafafe 100644
--- a/src/test/resources/test-requests.txt
+++ b/src/test/resources/test-requests.txt
@@ -73,4 +73,4 @@ curl -v -X POST -H 'Content-Type: application/json' -d '{"queryType":"timerange"
 
 
 
-curl -v -X POST -H 'Content-Type: application/json' -d '{"queryType":"pulserange","ordering":"ASC","channels":["dummy-test"],"fields":["channel","pulseId","globalMillis","globalNanos","dbValueBytes"],"binningStrategy":"bincount","binDuration":100,"aggregateChannels":"false","aggregationType":"index","aggregations":[{"fieldRef":"e_val","type":"max","resultFieldName":"maximum"},{"fieldRef":"e_val","type":"min","resultFieldName":"minimum"}], "queryRange":{"startPulseId":100,"endPulseId":100}}' http://localhost:8080/pulserange
\ No newline at end of file
+curl -v -X POST -H 'Content-Type: application/json' -d '{"queryType":"pulserange","ordering":"ASC","channels":["dummy-test"],"fields":["channel","pulseId","globalMillis","globalNanos","dbValueBytes"],"binningStrategy":"bincount","binDuration":100,"aggregateChannels":"false","aggregationType":"index","aggregations":[{"fieldRef":"e_val","type":"max","resultFieldName":"maximum"},{"fieldRef":"e_val","type":"min","resultFieldName":"minimum"}], "queryRange":{"startPulseId":100,"endPulseId":100}}' http://localhost:8080/pulserange