diff --git a/modello-maven-plugin/pom.xml b/modello-maven-plugin/pom.xml
index 599b55f9e..c5aa22f59 100644
--- a/modello-maven-plugin/pom.xml
+++ b/modello-maven-plugin/pom.xml
@@ -194,7 +194,7 @@
               <debug>true</debug>
               <filterProperties>
                 <plexusUtilsVersion>3.6.1</plexusUtilsVersion>
-                <junit4Version>${junit4Version}</junit4Version>
+                <junit5Version>${version.junit5}</junit5Version>
                 <java.version>${java.version}</java.version>
                 <jdom.version>${jdom.version}</jdom.version>
               </filterProperties>
diff --git a/modello-maven-plugin/src/it/clone-java5/pom.xml b/modello-maven-plugin/src/it/clone-java5/pom.xml
index 3a01b52ac..4ccce5b57 100644
--- a/modello-maven-plugin/src/it/clone-java5/pom.xml
+++ b/modello-maven-plugin/src/it/clone-java5/pom.xml
@@ -19,9 +19,10 @@
       <version>@plexusUtilsVersion@</version>
     </dependency>
     <dependency>
-      <groupId>junit</groupId>
-      <artifactId>junit</artifactId>
-      <version>@junit4Version@</version>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter-api</artifactId>
+      <version>@junit5Version@</version>
+      <scope>test</scope>
     </dependency>
   </dependencies>
 
@@ -31,7 +32,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-compiler-plugin</artifactId>
-        <version>3.8.0</version>
+        <version>3.14.1</version>
         <configuration>
           <source>@javaVersion@</source>
           <target>@javaVersion@</target>
@@ -40,12 +41,12 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-resources-plugin</artifactId>
-        <version>3.1.0</version>
+        <version>3.5.0</version>
       </plugin>
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-surefire-plugin</artifactId>
-        <version>2.22.0</version>
+        <version>3.5.6</version>
       </plugin>
       <plugin>
         <groupId>org.codehaus.modello</groupId>
diff --git a/modello-maven-plugin/src/it/clone-java5/src/test/java/test/CloneTest.java b/modello-maven-plugin/src/it/clone-java5/src/test/java/test/CloneTest.java
index 412e877f7..5f48730b8 100644
--- a/modello-maven-plugin/src/it/clone-java5/src/test/java/test/CloneTest.java
+++ b/modello-maven-plugin/src/it/clone-java5/src/test/java/test/CloneTest.java
@@ -4,12 +4,12 @@
 
 import org.codehaus.plexus.util.xml.Xpp3Dom;
 
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertNotSame;
-import static org.junit.Assert.assertSame;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertNotSame;
+import static org.junit.jupiter.api.Assertions.assertSame;
 
 public class CloneTest
 {
diff --git a/modello-maven-plugin/src/it/clone/pom.xml b/modello-maven-plugin/src/it/clone/pom.xml
index 063ae02ca..a5df98ab5 100644
--- a/modello-maven-plugin/src/it/clone/pom.xml
+++ b/modello-maven-plugin/src/it/clone/pom.xml
@@ -19,9 +19,10 @@
       <version>@plexusUtilsVersion@</version>
     </dependency>
     <dependency>
-      <groupId>junit</groupId>
-      <artifactId>junit</artifactId>
-      <version>@junit4Version@</version>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter-api</artifactId>
+      <version>@junit5Version@</version>
+      <scope>test</scope>
     </dependency>
   </dependencies>
 
@@ -31,7 +32,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-compiler-plugin</artifactId>
-        <version>3.8.0</version>
+        <version>3.14.1</version>
         <configuration>
           <source>@javaVersion@</source>
           <target>@javaVersion@</target>
@@ -40,12 +41,12 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-resources-plugin</artifactId>
-        <version>3.1.0</version>
+        <version>3.5.0</version>
       </plugin>
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-surefire-plugin</artifactId>
-        <version>2.22.0</version>
+        <version>3.5.6</version>
       </plugin>
       <plugin>
         <groupId>org.codehaus.modello</groupId>
diff --git a/modello-maven-plugin/src/it/clone/src/test/java/test/CloneTest.java b/modello-maven-plugin/src/it/clone/src/test/java/test/CloneTest.java
index ea97bca38..9cbc92859 100644
--- a/modello-maven-plugin/src/it/clone/src/test/java/test/CloneTest.java
+++ b/modello-maven-plugin/src/it/clone/src/test/java/test/CloneTest.java
@@ -4,12 +4,12 @@
 
 import org.codehaus.plexus.util.xml.Xpp3Dom;
 
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertNotSame;
-import static org.junit.Assert.assertSame;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertNotSame;
+import static org.junit.jupiter.api.Assertions.assertSame;
 
 public class CloneTest
 {
diff --git a/modello-maven-plugin/src/it/dom4j-no-plexus-utils/pom.xml b/modello-maven-plugin/src/it/dom4j-no-plexus-utils/pom.xml
index dda607fbb..4a0b2f468 100644
--- a/modello-maven-plugin/src/it/dom4j-no-plexus-utils/pom.xml
+++ b/modello-maven-plugin/src/it/dom4j-no-plexus-utils/pom.xml
@@ -29,7 +29,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-compiler-plugin</artifactId>
-        <version>3.8.0</version>
+        <version>3.14.1</version>
         <configuration>
           <source>@javaVersion@</source>
           <target>@javaVersion@</target>
@@ -38,12 +38,12 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-resources-plugin</artifactId>
-        <version>3.1.0</version>
+        <version>3.5.0</version>
       </plugin>
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-surefire-plugin</artifactId>
-        <version>2.22.0</version>
+        <version>3.5.6</version>
       </plugin>
       <plugin>
         <groupId>org.codehaus.modello</groupId>
diff --git a/modello-maven-plugin/src/it/features/pom.xml b/modello-maven-plugin/src/it/features/pom.xml
index 201661055..a6218fd15 100644
--- a/modello-maven-plugin/src/it/features/pom.xml
+++ b/modello-maven-plugin/src/it/features/pom.xml
@@ -53,7 +53,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-compiler-plugin</artifactId>
-        <version>3.8.0</version>
+        <version>3.14.1</version>
         <configuration>
           <source>@javaVersion@</source>
           <target>@javaVersion@</target>
@@ -62,12 +62,12 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-resources-plugin</artifactId>
-        <version>3.1.0</version>
+        <version>3.5.0</version>
       </plugin>
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-surefire-plugin</artifactId>
-        <version>2.22.0</version>
+        <version>3.5.6</version>
       </plugin>
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
diff --git a/modello-maven-plugin/src/it/javadoc/pom.xml b/modello-maven-plugin/src/it/javadoc/pom.xml
index 42ea53284..7bb293cab 100644
--- a/modello-maven-plugin/src/it/javadoc/pom.xml
+++ b/modello-maven-plugin/src/it/javadoc/pom.xml
@@ -14,9 +14,10 @@
       <version>@plexusUtilsVersion@</version>
     </dependency>
     <dependency>
-      <groupId>junit</groupId>
-      <artifactId>junit</artifactId>
-      <version>@junit4Version@</version>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter-api</artifactId>
+      <version>@junit5Version@</version>
+      <scope>test</scope>
     </dependency>
 
     <dependency>
@@ -50,7 +51,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-compiler-plugin</artifactId>
-        <version>3.8.0</version>
+        <version>3.14.1</version>
         <configuration>
           <source>@javaVersion@</source>
           <target>@javaVersion@</target>
@@ -59,12 +60,12 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-resources-plugin</artifactId>
-        <version>3.1.0</version>
+        <version>3.5.0</version>
       </plugin>
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-surefire-plugin</artifactId>
-        <version>2.22.0</version>
+        <version>3.5.6</version>
       </plugin>
       <plugin>
         <groupId>org.codehaus.modello</groupId>
diff --git a/modello-maven-plugin/src/it/jdom-no-plexus-utils/pom.xml b/modello-maven-plugin/src/it/jdom-no-plexus-utils/pom.xml
index 7f2f65d7d..be9238882 100644
--- a/modello-maven-plugin/src/it/jdom-no-plexus-utils/pom.xml
+++ b/modello-maven-plugin/src/it/jdom-no-plexus-utils/pom.xml
@@ -29,7 +29,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-compiler-plugin</artifactId>
-        <version>3.8.0</version>
+        <version>3.14.1</version>
         <configuration>
           <source>@javaVersion@</source>
           <target>@javaVersion@</target>
@@ -38,12 +38,12 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-resources-plugin</artifactId>
-        <version>3.1.0</version>
+        <version>3.5.0</version>
       </plugin>
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-surefire-plugin</artifactId>
-        <version>2.22.0</version>
+        <version>3.5.6</version>
       </plugin>
       <plugin>
         <groupId>org.codehaus.modello</groupId>
diff --git a/modello-maven-plugin/src/it/maven-model/pom.xml b/modello-maven-plugin/src/it/maven-model/pom.xml
index fa7b10b63..b0c3c6326 100644
--- a/modello-maven-plugin/src/it/maven-model/pom.xml
+++ b/modello-maven-plugin/src/it/maven-model/pom.xml
@@ -12,7 +12,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-compiler-plugin</artifactId>
-        <version>3.8.0</version>
+        <version>3.14.1</version>
         <configuration>
           <source>@javaVersion@</source>
           <target>@javaVersion@</target>
@@ -49,9 +49,10 @@
       <version>@plexusUtilsVersion@</version>
     </dependency>
     <dependency>
-      <groupId>junit</groupId>
-      <artifactId>junit</artifactId>
-      <version>@junit4Version@</version>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter-api</artifactId>
+      <version>@junit5Version@</version>
+      <scope>test</scope>
     </dependency>
   </dependencies>
 </project>
diff --git a/modello-maven-plugin/src/it/maven-model/src/test/java/org/codehaus/modello/xpp3/Xpp3ParsingTest.java b/modello-maven-plugin/src/it/maven-model/src/test/java/org/codehaus/modello/xpp3/Xpp3ParsingTest.java
index 3d8c009ed..3c1c146d2 100644
--- a/modello-maven-plugin/src/it/maven-model/src/test/java/org/codehaus/modello/xpp3/Xpp3ParsingTest.java
+++ b/modello-maven-plugin/src/it/maven-model/src/test/java/org/codehaus/modello/xpp3/Xpp3ParsingTest.java
@@ -1,47 +1,46 @@
 package org.codehaus.modello.xpp3;
 
-import static org.hamcrest.CoreMatchers.startsWith;
+import java.io.File;
 
-import org.junit.Rule;
-import org.junit.Test;
-import org.junit.rules.ExpectedException;
 import org.apache.maven.model.io.xpp3.MavenXpp3Reader;
 import org.codehaus.plexus.util.xml.XmlStreamReader;
 import org.codehaus.plexus.util.xml.pull.XmlPullParserException;
-import org.hamcrest.core.StringStartsWith;
+import org.junit.jupiter.api.Test;
 
-import java.io.File;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /** @author Jason van Zyl */
 public class Xpp3ParsingTest
 {
-    @Rule
-    public ExpectedException thrown= ExpectedException.none();
-
-    @Test
-    public void testXpp3ParsingWithModelWithWrongRootTag()
+    private static String readFailure( String modelFile )
         throws Exception
     {
-        thrown.expectMessage( startsWith( "Expected root element 'project' but found 'model' (position: START_TAG seen <model>... @1:8" ) );
-
-        File model = new File( System.getProperty( "basedir" ), "src/test/models/model-with-wrong-root-tag.xml" );
+        File model = new File( System.getProperty( "basedir" ), "src/test/models/" + modelFile );
 
         MavenXpp3Reader reader = new MavenXpp3Reader();
 
-        reader.read( new XmlStreamReader( model ), true );
+        XmlPullParserException e =
+            assertThrows( XmlPullParserException.class, () -> reader.read( new XmlStreamReader( model ), true ) );
+        return e.getMessage();
     }
 
     @Test
-    public void testXpp3ParsingWithModelWithMissingElements()
+    public void testXpp3ParsingWithModelWithWrongRootTag()
         throws Exception
     {
-        thrown.expectMessage( startsWith( "Unrecognised tag: 'groupId' (position: START_TAG seen ...<dependencies>" ) );
-
-        File model = new File( System.getProperty( "basedir" ), "src/test/models/model-with-missing-elements.xml" );
-
-        MavenXpp3Reader reader = new MavenXpp3Reader();
+        String message = readFailure( "model-with-wrong-root-tag.xml" );
+        assertTrue( message.startsWith(
+            "Expected root element 'project' but found 'model' (position: START_TAG seen <model>... @1:8" ), message );
+    }
 
-        reader.read( new XmlStreamReader( model ), true );
+    @Test
+    public void testXpp3ParsingWithModelWithMissingElements()
+        throws Exception
+    {
+        String message = readFailure( "model-with-missing-elements.xml" );
+        assertTrue( message.startsWith( "Unrecognised tag: 'groupId' (position: START_TAG seen ...<dependencies>" ),
+                    message );
     }
 
     @Test
@@ -49,13 +48,8 @@ public void testXpp3ParsingWithModelWithPostTags()
         throws Exception
     {
         // internal message from MXParser
-        thrown.expectMessage( startsWith( "start tag not allowed in epilog" ) );
-
-        File model = new File( System.getProperty( "basedir" ), "src/test/models/model-with-post-tags.xml" );
-
-        MavenXpp3Reader reader = new MavenXpp3Reader();
-
-        reader.read( new XmlStreamReader( model ), true );
+        String message = readFailure( "model-with-post-tags.xml" );
+        assertTrue( message.startsWith( "start tag not allowed in epilog" ), message );
     }
 
 }
diff --git a/modello-maven-plugin/src/it/snakeyaml/pom.xml b/modello-maven-plugin/src/it/snakeyaml/pom.xml
index 9e5d6f062..e617b0048 100644
--- a/modello-maven-plugin/src/it/snakeyaml/pom.xml
+++ b/modello-maven-plugin/src/it/snakeyaml/pom.xml
@@ -21,7 +21,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-compiler-plugin</artifactId>
-        <version>3.8.0</version>
+        <version>3.14.1</version>
         <configuration>
           <source>@javaVersion@</source>
           <target>@javaVersion@</target>
diff --git a/modello-maven-plugin/src/it/stax-no-plexus-utils/pom.xml b/modello-maven-plugin/src/it/stax-no-plexus-utils/pom.xml
index 1fc8bcd11..914ebf0d7 100644
--- a/modello-maven-plugin/src/it/stax-no-plexus-utils/pom.xml
+++ b/modello-maven-plugin/src/it/stax-no-plexus-utils/pom.xml
@@ -35,7 +35,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-compiler-plugin</artifactId>
-        <version>3.8.0</version>
+        <version>3.14.1</version>
         <configuration>
           <source>@javaVersion@</source>
           <target>@javaVersion@</target>
@@ -44,12 +44,12 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-resources-plugin</artifactId>
-        <version>3.1.0</version>
+        <version>3.5.0</version>
       </plugin>
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-surefire-plugin</artifactId>
-        <version>2.22.0</version>
+        <version>3.5.6</version>
       </plugin>
       <plugin>
         <groupId>org.codehaus.modello</groupId>
diff --git a/pom.xml b/pom.xml
index 0a3ec45ef..c0796262d 100644
--- a/pom.xml
+++ b/pom.xml
@@ -186,7 +186,6 @@
     <slf4j.version>1.7.36</slf4j.version>
     <sisu.version>1.1.1</sisu.version>
     <mavenVersion>3.6.3</mavenVersion>
-    <junit4Version>4.13.2</junit4Version>
     <project.build.outputTimestamp>2026-08-30T21:30:18Z</project.build.outputTimestamp>
   </properties>
 
@@ -330,11 +329,6 @@
         <artifactId>slf4j-simple</artifactId>
         <version>${slf4j.version}</version>
       </dependency>
-      <dependency>
-        <groupId>junit</groupId>
-        <artifactId>junit</artifactId>
-        <version>${junit4Version}</version>
-      </dependency>
       <dependency>
         <groupId>org.codehaus.plexus</groupId>
         <artifactId>plexus-testing</artifactId>