diff --git a/pom.xml b/pom.xml
index 03addce4c..3bbf472f8 100644
--- a/pom.xml
+++ b/pom.xml
@@ -258,20 +258,27 @@
       <version>3.10</version>
     </dependency>
     <dependency>
-      <groupId>junit</groupId>
-      <artifactId>junit</artifactId>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter-engine</artifactId>
+      <version>5.6.2</version>
       <scope>test</scope>
     </dependency>
     <dependency>
       <groupId>org.mockito</groupId>
       <artifactId>mockito-core</artifactId>
-      <version>1.9.5</version>
+      <version>3.3.3</version>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.mockito</groupId>
+      <artifactId>mockito-junit-jupiter</artifactId>
+      <version>3.3.3</version>
       <scope>test</scope>
     </dependency>
     <dependency>
       <groupId>org.hamcrest</groupId>
-      <artifactId>hamcrest-library</artifactId>
-      <version>1.3</version>
+      <artifactId>hamcrest</artifactId>
+      <version>2.2</version>
       <scope>test</scope>
     </dependency>
   </dependencies>
diff --git a/src/test/java/org/codehaus/mojo/versions/AbstractVersionsUpdaterMojoTest.java b/src/test/java/org/codehaus/mojo/versions/AbstractVersionsUpdaterMojoTest.java
index 41bc32a95..ee2cbfd4d 100644
--- a/src/test/java/org/codehaus/mojo/versions/AbstractVersionsUpdaterMojoTest.java
+++ b/src/test/java/org/codehaus/mojo/versions/AbstractVersionsUpdaterMojoTest.java
@@ -21,10 +21,10 @@
 
 import org.apache.maven.artifact.versioning.DefaultArtifactVersion;
 import org.codehaus.mojo.versions.ordering.NumericVersionComparator;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * Basic tests for {@linkplain org.codehaus.mojo.versions.AbstractVersionsUpdaterMojo}.
diff --git a/src/test/java/org/codehaus/mojo/versions/RequiredMavenVersionFinderTest.java b/src/test/java/org/codehaus/mojo/versions/RequiredMavenVersionFinderTest.java
index f852d255a..3e006d6a8 100644
--- a/src/test/java/org/codehaus/mojo/versions/RequiredMavenVersionFinderTest.java
+++ b/src/test/java/org/codehaus/mojo/versions/RequiredMavenVersionFinderTest.java
@@ -6,22 +6,23 @@
 import org.apache.maven.model.Prerequisites;
 import org.apache.maven.project.MavenProject;
 import org.codehaus.plexus.util.xml.Xpp3Dom;
-import org.junit.Before;
-import org.junit.Test;
-import org.junit.runner.RunWith;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
 import org.mockito.Mock;
-import org.mockito.runners.MockitoJUnitRunner;
+import org.mockito.junit.jupiter.MockitoExtension;
 
 import java.util.ArrayList;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNull;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNull;
+import static org.mockito.Mockito.lenient;
 import static org.mockito.Mockito.when;
 
 /**
  * Unit tests for RequiredMavenVersionFinder.
  */
-@RunWith(MockitoJUnitRunner.class)
+@ExtendWith(MockitoExtension.class)
 public class RequiredMavenVersionFinderTest {
 
     @Mock
@@ -53,20 +54,20 @@ public class RequiredMavenVersionFinderTest {
     @Mock
     private Prerequisites parentPrerequisites;
 
-    @Before
+    @BeforeEach
     public void setup() {
-        when(mavenProject.getPrerequisites()).thenReturn(null);
-        when(mavenProject.getBuildPlugins()).thenReturn(null);
-        when(mavenProject.hasParent()).thenReturn(false);
-        when(prerequisites.getMaven()).thenReturn(null);
-        when(nonEnforcerPlugin.getArtifactId()).thenReturn(null);
-        when(enforcerPlugin.getArtifactId()).thenReturn("maven-enforcer-plugin");
-        when(enforcerPlugin.getExecutions()).thenReturn(null);
-        when(pluginExecution.getGoals()).thenReturn(null);
-        when(parentMavenProject.getPrerequisites()).thenReturn(null);
-        when(parentMavenProject.getBuildPlugins()).thenReturn(null);
-        when(parentMavenProject.hasParent()).thenReturn(false);
-        when(parentPrerequisites.getMaven()).thenReturn(null);
+        lenient().when(mavenProject.getPrerequisites()).thenReturn(null);
+        lenient().when(mavenProject.getBuildPlugins()).thenReturn(null);
+        lenient().when(mavenProject.hasParent()).thenReturn(false);
+        lenient().when(prerequisites.getMaven()).thenReturn(null);
+        lenient().when(nonEnforcerPlugin.getArtifactId()).thenReturn(null);
+        lenient().when(enforcerPlugin.getArtifactId()).thenReturn("maven-enforcer-plugin");
+        lenient().when(enforcerPlugin.getExecutions()).thenReturn(null);
+        lenient().when(pluginExecution.getGoals()).thenReturn(null);
+        lenient().when(parentMavenProject.getPrerequisites()).thenReturn(null);
+        lenient().when(parentMavenProject.getBuildPlugins()).thenReturn(null);
+        lenient().when(parentMavenProject.hasParent()).thenReturn(false);
+        lenient().when(parentPrerequisites.getMaven()).thenReturn(null);
     }
 
     @Test
diff --git a/src/test/java/org/codehaus/mojo/versions/RewriteWithStAXTest.java b/src/test/java/org/codehaus/mojo/versions/RewriteWithStAXTest.java
index a300fab32..a5b075803 100644
--- a/src/test/java/org/codehaus/mojo/versions/RewriteWithStAXTest.java
+++ b/src/test/java/org/codehaus/mojo/versions/RewriteWithStAXTest.java
@@ -21,7 +21,7 @@
 
 import org.codehaus.mojo.versions.rewriting.ModifiedPomXMLEventReader;
 import org.codehaus.stax2.XMLInputFactory2;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 import javax.xml.stream.XMLEventReader;
 import javax.xml.stream.XMLEventWriter;
@@ -34,8 +34,8 @@
 import java.io.ByteArrayOutputStream;
 import java.util.Stack;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
 
 /**
  * Basic tests for rewriting XML with a StAX (JSR-173) implementation.
@@ -68,7 +68,7 @@ public void testBasic()
 
         String output = new String( dest.toByteArray(), "utf-8" );
 
-        assertFalse( "StAX implementation is not good enough", input.equals( output ) );
+        assertFalse( input.equals( output ), "StAX implementation is not good enough" );
     }
 
     @Test
diff --git a/src/test/java/org/codehaus/mojo/versions/SeparatePatternsForIncludesAnExcludesTest.java b/src/test/java/org/codehaus/mojo/versions/SeparatePatternsForIncludesAnExcludesTest.java
index 4bdce9e6f..3305f3a87 100644
--- a/src/test/java/org/codehaus/mojo/versions/SeparatePatternsForIncludesAnExcludesTest.java
+++ b/src/test/java/org/codehaus/mojo/versions/SeparatePatternsForIncludesAnExcludesTest.java
@@ -8,17 +8,17 @@
 import org.apache.maven.plugin.MojoFailureException;
 import org.codehaus.mojo.versions.rewriting.ModifiedPomXMLEventReader;
 
-import org.junit.Before;
-import org.junit.Test;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 
-import static org.junit.Assert.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 public class SeparatePatternsForIncludesAnExcludesTest
 {
 
     AbstractVersionsDependencyUpdaterMojo mojo;
 
-    @Before
+    @BeforeEach
     public void setUp()
         throws Exception
     {
diff --git a/src/test/java/org/codehaus/mojo/versions/api/ArtifactVersionsTest.java b/src/test/java/org/codehaus/mojo/versions/api/ArtifactVersionsTest.java
index 057555df8..9289c7fe9 100644
--- a/src/test/java/org/codehaus/mojo/versions/api/ArtifactVersionsTest.java
+++ b/src/test/java/org/codehaus/mojo/versions/api/ArtifactVersionsTest.java
@@ -29,14 +29,14 @@
 import org.codehaus.mojo.versions.ordering.NumericVersionComparator;
 import org.hamcrest.CoreMatchers;
 import org.hamcrest.Matchers;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 import java.util.Arrays;
 
-import static org.junit.Assert.assertArrayEquals;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNull;
-import static org.junit.Assert.assertThat;
+import static org.junit.jupiter.api.Assertions.assertArrayEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNull;
+import static org.hamcrest.MatcherAssert.assertThat;
 
 public class ArtifactVersionsTest
 {
diff --git a/src/test/java/org/codehaus/mojo/versions/api/DefaultVersionsHelperTest.java b/src/test/java/org/codehaus/mojo/versions/api/DefaultVersionsHelperTest.java
index 779d9f4b7..28f77f6b7 100644
--- a/src/test/java/org/codehaus/mojo/versions/api/DefaultVersionsHelperTest.java
+++ b/src/test/java/org/codehaus/mojo/versions/api/DefaultVersionsHelperTest.java
@@ -44,7 +44,7 @@
 import org.codehaus.mojo.versions.Property;
 import org.codehaus.mojo.versions.ordering.VersionComparators;
 import org.hamcrest.CoreMatchers;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -52,10 +52,10 @@
 
 import static java.util.Arrays.asList;
 import static org.hamcrest.MatcherAssert.assertThat;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertTrue;
-import static org.junit.matchers.JUnitMatchers.hasItems;
+import static org.hamcrest.core.IsIterableContaining.hasItems;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 import static org.mockito.Mockito.any;
 import static org.mockito.Mockito.anyList;
 import static org.mockito.Mockito.mock;
@@ -151,15 +151,18 @@ public void testRuleSets()
     {
         VersionsHelper helper = createHelper();
 
-        assertEquals( "no match gives default", VersionComparators.getVersionComparator( "maven" ),
-                      helper.getVersionComparator( "net.foo", "bar" ) );
-        assertEquals( "matches wildcard", VersionComparators.getVersionComparator( "mercury" ),
-                      helper.getVersionComparator( "org.apache.maven", "plugins" ) );
-        assertEquals( "exact match wins over initial match", VersionComparators.getVersionComparator( "mercury" ),
-                      helper.getVersionComparator( "com.mycompany.custom.maven", "plugins" ) );
-        assertEquals( "non-wildcard prefix wins over wildcard prefix match",
-                      VersionComparators.getVersionComparator( "maven" ),
-                      helper.getVersionComparator( "com.mycompany.maven.plugins", "plugins" ) );
+        assertEquals( VersionComparators.getVersionComparator( "maven" ),
+                      helper.getVersionComparator( "net.foo", "bar" ),
+                      "no match gives default" );
+        assertEquals( VersionComparators.getVersionComparator( "mercury" ),
+                      helper.getVersionComparator( "org.apache.maven", "plugins" ),
+                      "matches wildcard" );
+        assertEquals( VersionComparators.getVersionComparator( "mercury" ),
+                      helper.getVersionComparator( "com.mycompany.custom.maven", "plugins" ),
+                      "exact match wins over initial match" );
+        assertEquals( VersionComparators.getVersionComparator( "maven" ),
+                      helper.getVersionComparator( "com.mycompany.maven.plugins", "plugins" ),
+                      "non-wildcard prefix wins over wildcard prefix match" );
         assertEquals( VersionComparators.getVersionComparator( "maven" ),
                       helper.getVersionComparator( "com.mycompany.maven", "new-maven-plugin" ) );
         assertEquals( VersionComparators.getVersionComparator( "mercury" ),
diff --git a/src/test/java/org/codehaus/mojo/versions/api/PomHelperTest.java b/src/test/java/org/codehaus/mojo/versions/api/PomHelperTest.java
index 251a738b7..0b1ecfa90 100644
--- a/src/test/java/org/codehaus/mojo/versions/api/PomHelperTest.java
+++ b/src/test/java/org/codehaus/mojo/versions/api/PomHelperTest.java
@@ -5,7 +5,7 @@
 import org.apache.maven.model.io.xpp3.MavenXpp3Reader;
 import org.codehaus.mojo.versions.rewriting.ModifiedPomXMLEventReader;
 import org.codehaus.stax2.XMLInputFactory2;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 import javax.xml.stream.XMLInputFactory;
 import java.io.File;
@@ -13,11 +13,11 @@
 import java.net.URL;
 import java.util.List;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertNotSame;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertNotSame;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * Tests the methods of {@link PomHelper}.
@@ -76,7 +76,7 @@ public void testLongProperties()
 
         String newVersion = "1";
 
-        assertTrue( "The pom has been modified", PomHelper.setProjectVersion( pom, newVersion ) );
+        assertTrue( PomHelper.setProjectVersion( pom, newVersion ), "The pom has been modified" );
 
         assertEquals( newVersion, PomHelper.getProjectVersion( pom ) );
 
diff --git a/src/test/java/org/codehaus/mojo/versions/ordering/MajorMinorIncrementalFilterTest.java b/src/test/java/org/codehaus/mojo/versions/ordering/MajorMinorIncrementalFilterTest.java
index 274576a21..bd79bcae3 100644
--- a/src/test/java/org/codehaus/mojo/versions/ordering/MajorMinorIncrementalFilterTest.java
+++ b/src/test/java/org/codehaus/mojo/versions/ordering/MajorMinorIncrementalFilterTest.java
@@ -2,10 +2,10 @@
 
 import org.apache.maven.artifact.versioning.ArtifactVersion;
 import org.apache.maven.artifact.versioning.DefaultArtifactVersion;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 import static org.hamcrest.collection.IsArrayContainingInOrder.arrayContaining;
-import static org.junit.Assert.assertThat;
+import static org.hamcrest.MatcherAssert.assertThat;
 
 public class MajorMinorIncrementalFilterTest {
 
diff --git a/src/test/java/org/codehaus/mojo/versions/ordering/MavenVersionComparatorTest.java b/src/test/java/org/codehaus/mojo/versions/ordering/MavenVersionComparatorTest.java
index e3aa2dfd2..47572be05 100644
--- a/src/test/java/org/codehaus/mojo/versions/ordering/MavenVersionComparatorTest.java
+++ b/src/test/java/org/codehaus/mojo/versions/ordering/MavenVersionComparatorTest.java
@@ -20,9 +20,9 @@
  */
 
 import org.apache.maven.artifact.versioning.DefaultArtifactVersion;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
-import static org.junit.Assert.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 public class MavenVersionComparatorTest
 {
diff --git a/src/test/java/org/codehaus/mojo/versions/ordering/MercuryVersionComparatorTest.java b/src/test/java/org/codehaus/mojo/versions/ordering/MercuryVersionComparatorTest.java
index deeb70c8e..c0ec0ff50 100644
--- a/src/test/java/org/codehaus/mojo/versions/ordering/MercuryVersionComparatorTest.java
+++ b/src/test/java/org/codehaus/mojo/versions/ordering/MercuryVersionComparatorTest.java
@@ -20,9 +20,9 @@
  */
 
 import org.apache.maven.artifact.versioning.DefaultArtifactVersion;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
-import static org.junit.Assert.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 public class MercuryVersionComparatorTest
 {
diff --git a/src/test/java/org/codehaus/mojo/versions/ordering/NumericVersionComparatorTest.java b/src/test/java/org/codehaus/mojo/versions/ordering/NumericVersionComparatorTest.java
index 0c1b561a2..ff3e8d78b 100644
--- a/src/test/java/org/codehaus/mojo/versions/ordering/NumericVersionComparatorTest.java
+++ b/src/test/java/org/codehaus/mojo/versions/ordering/NumericVersionComparatorTest.java
@@ -20,10 +20,10 @@
  */
 
 import org.apache.maven.artifact.versioning.DefaultArtifactVersion;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 public class NumericVersionComparatorTest
 {
diff --git a/src/test/java/org/codehaus/mojo/versions/ordering/VersionComparatorsTest.java b/src/test/java/org/codehaus/mojo/versions/ordering/VersionComparatorsTest.java
index 6741b0333..b60378450 100644
--- a/src/test/java/org/codehaus/mojo/versions/ordering/VersionComparatorsTest.java
+++ b/src/test/java/org/codehaus/mojo/versions/ordering/VersionComparatorsTest.java
@@ -21,9 +21,9 @@
 
 import org.apache.maven.artifact.versioning.DefaultArtifactVersion;
 import org.apache.maven.artifact.versioning.ArtifactVersion;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 public class VersionComparatorsTest
 {
@@ -64,7 +64,7 @@ public void assertLater(String version, VersionComparator instance) {
         int count = instance.getSegmentCount( v1 );
         for (int i = 0; i < count; i++) {
             ArtifactVersion v2 = instance.incrementSegment( v1, i );
-            assertTrue(v1.toString() + " < " + v2.toString(), instance.compare( v1, v2 ) < 0);
+            assertTrue( instance.compare( v1, v2 ) < 0, v1.toString() + " < " + v2.toString() );
         }
     }
 }