diff --git a/navalplanner-business/src/main/java/org/navalplanner/business/resources/entities/Resource.java b/navalplanner-business/src/main/java/org/navalplanner/business/resources/entities/Resource.java
index 6ec3fa38f..9d0a370df 100644
--- a/navalplanner-business/src/main/java/org/navalplanner/business/resources/entities/Resource.java
+++ b/navalplanner-business/src/main/java/org/navalplanner/business/resources/entities/Resource.java
@@ -29,7 +29,6 @@ public abstract class Resource {
 
     private Long id;
 
-    @SuppressWarnings("unused")
     private long version;
 
     private Set<CriterionSatisfaction> criterionSatisfactions = new HashSet<CriterionSatisfaction>();
@@ -40,6 +39,10 @@ public abstract class Resource {
 
     public abstract int getDailyCapacity();
 
+    public long getVersion() {
+        return version;
+    }
+
     /**
      * It removes the resource from the database and updates references. The
      * default implementation removes the resource from the resource group it
diff --git a/navalplanner-business/src/test/java/org/navalplanner/business/test/resources/services/CriterionServiceTest.java b/navalplanner-business/src/test/java/org/navalplanner/business/test/resources/services/CriterionServiceTest.java
index 584b5181c..d7a1d4b86 100644
--- a/navalplanner-business/src/test/java/org/navalplanner/business/test/resources/services/CriterionServiceTest.java
+++ b/navalplanner-business/src/test/java/org/navalplanner/business/test/resources/services/CriterionServiceTest.java
@@ -1,5 +1,13 @@
 package org.navalplanner.business.test.resources.services;
 
+import static org.hamcrest.CoreMatchers.equalTo;
+import static org.hamcrest.CoreMatchers.is;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertThat;
+import static org.junit.Assert.assertTrue;
+import static org.navalplanner.business.BusinessGlobalNames.BUSINESS_SPRING_CONFIG_FILE;
+import static org.navalplanner.business.test.BusinessGlobalNames.BUSINESS_SPRING_CONFIG_TEST_FILE;
+
 import java.util.Collection;
 import java.util.UUID;
 
@@ -28,14 +36,6 @@ import org.springframework.test.context.ContextConfiguration;
 import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
 import org.springframework.transaction.annotation.Transactional;
 
-import static org.hamcrest.CoreMatchers.equalTo;
-import static org.hamcrest.CoreMatchers.is;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertThat;
-import static org.junit.Assert.assertTrue;
-import static org.navalplanner.business.BusinessGlobalNames.BUSINESS_SPRING_CONFIG_FILE;
-import static org.navalplanner.business.test.BusinessGlobalNames.BUSINESS_SPRING_CONFIG_TEST_FILE;
-
 /**
  * Test cases for {@link CriterionService} <br />
  * @author Óscar González Fernández <ogonzalez@igalia.com>
@@ -308,12 +308,12 @@ public class CriterionServiceTest {
         assertTrue(criterions.contains(one));
     }
 
-    private ICriterionType<Criterion> createTypeThatMatches(
+    public static ICriterionType<Criterion> createTypeThatMatches(
             final Criterion criterion) {
         return createTypeThatMatches(false, criterion);
     }
 
-    private ICriterionType<Criterion> createTypeThatMatches(
+    public static ICriterionType<Criterion> createTypeThatMatches(
             final boolean allowMultipleActiveCriterionsPerResource,
             final Criterion criterion) {
         return new ICriterionType<Criterion>() {
diff --git a/navalplanner-business/src/test/java/org/navalplanner/business/test/resources/services/ResourceServiceTest.java b/navalplanner-business/src/test/java/org/navalplanner/business/test/resources/services/ResourceServiceTest.java
index b8af91a52..1e9e387b1 100644
--- a/navalplanner-business/src/test/java/org/navalplanner/business/test/resources/services/ResourceServiceTest.java
+++ b/navalplanner-business/src/test/java/org/navalplanner/business/test/resources/services/ResourceServiceTest.java
@@ -1,5 +1,15 @@
 package org.navalplanner.business.test.resources.services;
 
+import static org.hamcrest.CoreMatchers.equalTo;
+import static org.hamcrest.CoreMatchers.not;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertThat;
+import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.fail;
+import static org.navalplanner.business.BusinessGlobalNames.BUSINESS_SPRING_CONFIG_FILE;
+import static org.navalplanner.business.test.BusinessGlobalNames.BUSINESS_SPRING_CONFIG_TEST_FILE;
+
 import org.hibernate.validator.ClassValidator;
 import org.hibernate.validator.InvalidStateException;
 import org.hibernate.validator.InvalidValue;
@@ -7,10 +17,15 @@ import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.navalplanner.business.common.exceptions.InstanceNotFoundException;
 import org.navalplanner.business.resources.daos.IResourceDao;
+import org.navalplanner.business.resources.entities.Criterion;
+import org.navalplanner.business.resources.entities.CriterionWithItsType;
 import org.navalplanner.business.resources.entities.ICriterion;
+import org.navalplanner.business.resources.entities.ICriterionType;
 import org.navalplanner.business.resources.entities.Resource;
 import org.navalplanner.business.resources.entities.Worker;
+import org.navalplanner.business.resources.services.CriterionService;
 import org.navalplanner.business.resources.services.ResourceService;
+import org.navalplanner.business.test.resources.daos.CriterionDAOTest;
 import org.navalplanner.business.test.resources.entities.CriterionTest;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.test.annotation.NotTransactional;
@@ -18,13 +33,6 @@ import org.springframework.test.context.ContextConfiguration;
 import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
 import org.springframework.transaction.annotation.Transactional;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertTrue;
-import static org.junit.Assert.fail;
-import static org.navalplanner.business.BusinessGlobalNames.BUSINESS_SPRING_CONFIG_FILE;
-import static org.navalplanner.business.test.BusinessGlobalNames.BUSINESS_SPRING_CONFIG_TEST_FILE;
-
 /**
  * A class for testing <code>ResourceService</code>. The service and the
  * resource DAOs are autowired.
@@ -42,6 +50,9 @@ public class ResourceServiceTest {
     @Autowired
     private IResourceDao resourceDao;
 
+    @Autowired
+    private CriterionService criterionService;
+
     @Test
     public void testRemoveResource() throws InstanceNotFoundException {
 
@@ -103,6 +114,35 @@ public class ResourceServiceTest {
         }
     }
 
+    @Test
+    @NotTransactional
+    public void versionIsIncreased() throws Exception {
+        Worker worker1 = new Worker("worker-1", "worker-2-surname",
+                "11111111A", 8);
+        resourceService.saveResource(worker1);
+        long versionValueAfterSave = worker1.getVersion();
+        worker1.setFirstName("blabla");
+        resourceService.saveResource(worker1);
+        assertThat(worker1.getVersion(), not(equalTo(versionValueAfterSave)));
+    }
+
+    @Test
+    @NotTransactional
+    public void versionIsIncreasedWhenAddingSatisfactions()
+            throws Exception {
+        Worker worker1 = new Worker("worker-1", "worker-2-surname",
+                "11111111A", 8);
+        resourceService.saveResource(worker1);
+        long versionValueAfterSave = worker1.getVersion();
+        Criterion criterion = CriterionDAOTest.createValidCriterion();
+        criterionService.save(criterion);
+        ICriterionType<Criterion> type = CriterionServiceTest
+                .createTypeThatMatches(criterion);
+        worker1.activate(new CriterionWithItsType(type, criterion));
+        resourceService.saveResource(worker1);
+        assertThat(worker1.getVersion(), not(equalTo(versionValueAfterSave)));
+    }
+
     public void testResourcesSatisfying() {
         Worker worker1 = new Worker("worker-1", "worker-2-surname",
                 "11111111A", 8);