diff --git a/compatibility/pom.xml b/compatibility/pom.xml
index 784baf01a5..d9c7f0c51e 100644
--- a/compatibility/pom.xml
+++ b/compatibility/pom.xml
@@ -14,7 +14,7 @@
     <properties>
         <hamcrest.version>3.0</hamcrest.version>
         <jackson.version>2.20.0</jackson.version>
-        <junit-jupiter.version>5.13.4</junit-jupiter.version>
+        <junit-jupiter.version>6.0.0-RC3</junit-jupiter.version>
         <project.Automatic-Module-Name>io.cucumber.compatibility</project.Automatic-Module-Name>
     </properties>
 
diff --git a/cucumber-archetype/pom.xml b/cucumber-archetype/pom.xml
index ced6dc3791..d5e7a8411b 100644
--- a/cucumber-archetype/pom.xml
+++ b/cucumber-archetype/pom.xml
@@ -15,7 +15,7 @@
     <description>Cucumber JVM: Maven Archetype</description>
 
     <properties>
-        <junit-jupiter.version>5.13.4</junit-jupiter.version>
+        <junit-jupiter.version>6.0.0-RC3</junit-jupiter.version>
         <assertj.version>3.27.6</assertj.version>
         <maven-compiler-plugin.version>3.14.1</maven-compiler-plugin.version>
         <maven-surefire-plugin.version>3.5.4</maven-surefire-plugin.version>
diff --git a/cucumber-cdi2/pom.xml b/cucumber-cdi2/pom.xml
index 8ad4aa8093..d323538d2e 100644
--- a/cucumber-cdi2/pom.xml
+++ b/cucumber-cdi2/pom.xml
@@ -7,7 +7,7 @@
         <openwebbeans.version>2.0.28</openwebbeans.version>
         <weld-se-core.version>3.1.9.Final</weld-se-core.version>
         <apiguardian-api.version>1.1.2</apiguardian-api.version>
-        <junit-jupiter.version>5.13.4</junit-jupiter.version>
+        <junit-jupiter.version>6.0.0-RC3</junit-jupiter.version>
         <hamcrest.version>2.2</hamcrest.version>
     </properties>
 
diff --git a/cucumber-core/pom.xml b/cucumber-core/pom.xml
index e029256708..5544218a82 100644
--- a/cucumber-core/pom.xml
+++ b/cucumber-core/pom.xml
@@ -16,7 +16,7 @@
         <apiguardian-api.version>1.1.2</apiguardian-api.version>
         <jackson.version>2.20.0</jackson.version>
         <jsoup.version>1.21.2</jsoup.version>
-        <junit-jupiter.version>5.13.4</junit-jupiter.version>
+        <junit-jupiter.version>6.0.0-RC3</junit-jupiter.version>
         <xmlunit.version>2.10.4</xmlunit.version>
         <hamcrest.version>3.0</hamcrest.version>
         <hamcrest-json.version>0.2</hamcrest-json.version>
diff --git a/cucumber-deltaspike/pom.xml b/cucumber-deltaspike/pom.xml
index 965bc9dfa1..766a4ab348 100644
--- a/cucumber-deltaspike/pom.xml
+++ b/cucumber-deltaspike/pom.xml
@@ -16,7 +16,7 @@
         <apiguardian-api.version>1.1.2</apiguardian-api.version>
         <cdi-api.version>2.0.SP1</cdi-api.version>
         <deltaspike.version>1.9.6</deltaspike.version>
-        <junit-jupiter.version>5.13.4</junit-jupiter.version>
+        <junit-jupiter.version>6.0.0-RC3</junit-jupiter.version>
         <project.Automatic-Module-Name>io.cucumber.deltaspike</project.Automatic-Module-Name>
     </properties>
 
diff --git a/cucumber-gherkin-messages/pom.xml b/cucumber-gherkin-messages/pom.xml
index 4dbdf24a08..a4ca91a756 100644
--- a/cucumber-gherkin-messages/pom.xml
+++ b/cucumber-gherkin-messages/pom.xml
@@ -8,7 +8,7 @@
     </parent>
 
     <properties>
-        <junit-jupiter.version>5.13.4</junit-jupiter.version>
+        <junit-jupiter.version>6.0.0-RC3</junit-jupiter.version>
         <project.Automatic-Module-Name>io.cucumber.core.gherkin.messages</project.Automatic-Module-Name>
     </properties>
 
diff --git a/cucumber-gherkin/pom.xml b/cucumber-gherkin/pom.xml
index f389e197ce..8508a15ee7 100644
--- a/cucumber-gherkin/pom.xml
+++ b/cucumber-gherkin/pom.xml
@@ -8,7 +8,7 @@
     </parent>
 
     <properties>
-        <junit-jupiter.version>5.13.4</junit-jupiter.version>
+        <junit-jupiter.version>6.0.0-RC3</junit-jupiter.version>
         <project.Automatic-Module-Name>io.cucumber.core.gherkin</project.Automatic-Module-Name>
     </properties>
 
diff --git a/cucumber-guice/pom.xml b/cucumber-guice/pom.xml
index 5286391b74..94d211de39 100644
--- a/cucumber-guice/pom.xml
+++ b/cucumber-guice/pom.xml
@@ -15,7 +15,7 @@
         <apiguardian-api.version>1.1.2</apiguardian-api.version>
         <guice.version>7.0.0</guice.version>
         <hamcrest.version>3.0</hamcrest.version>
-        <junit-jupiter.version>5.13.4</junit-jupiter.version>
+        <junit-jupiter.version>6.0.0-RC3</junit-jupiter.version>
         <project.Automatic-Module-Name>io.cucumber.guice</project.Automatic-Module-Name>
         <mockito.version>5.20.0</mockito.version>
     </properties>
diff --git a/cucumber-jakarta-cdi/pom.xml b/cucumber-jakarta-cdi/pom.xml
index 9c51530657..62afed45b9 100644
--- a/cucumber-jakarta-cdi/pom.xml
+++ b/cucumber-jakarta-cdi/pom.xml
@@ -6,7 +6,7 @@
         <apiguardian-api.version>1.1.2</apiguardian-api.version>
         <jakarta.enterprise.cdi-api.version>4.1.0</jakarta.enterprise.cdi-api.version>
         <jakarta.activation-api.version>2.1.4</jakarta.activation-api.version>
-        <junit-jupiter.version>5.13.4</junit-jupiter.version>
+        <junit-jupiter.version>6.0.0-RC3</junit-jupiter.version>
         <hamcrest.version>3.0</hamcrest.version>
         <weld.version>5.1.6.Final</weld.version>
     </properties>
diff --git a/cucumber-jakarta-openejb/pom.xml b/cucumber-jakarta-openejb/pom.xml
index 1de6b15ab9..0d387191b0 100644
--- a/cucumber-jakarta-openejb/pom.xml
+++ b/cucumber-jakarta-openejb/pom.xml
@@ -14,7 +14,7 @@
     <properties>
         <apiguardian-api.version>1.1.2</apiguardian-api.version>
         <hamcrest.version>3.0</hamcrest.version>
-        <junit-jupiter.version>5.13.4</junit-jupiter.version>
+        <junit-jupiter.version>6.0.0-RC3</junit-jupiter.version>
         <openejb-core.version>9.1.3</openejb-core.version>
         <project.Automatic-Module-Name>io.cucumber.jakarta.openejb</project.Automatic-Module-Name>
     </properties>
diff --git a/cucumber-java/pom.xml b/cucumber-java/pom.xml
index 5d81ac5cd3..f0e934a614 100644
--- a/cucumber-java/pom.xml
+++ b/cucumber-java/pom.xml
@@ -16,7 +16,7 @@
         <apiguardian-api.version>1.1.2</apiguardian-api.version>
         <hamcrest.version>3.0</hamcrest.version>
         <jackson.version>2.20.0</jackson.version>
-        <junit-jupiter.version>5.13.4</junit-jupiter.version>
+        <junit-jupiter.version>6.0.0-RC3</junit-jupiter.version>
         <mockito.version>5.20.0</mockito.version>
     </properties>
 
diff --git a/cucumber-java8/pom.xml b/cucumber-java8/pom.xml
index 08723b33c6..f6b6e9eaef 100644
--- a/cucumber-java8/pom.xml
+++ b/cucumber-java8/pom.xml
@@ -15,7 +15,7 @@
         <project.Automatic-Module-Name>io.cucumber.java8</project.Automatic-Module-Name>
         <apiguardian-api.version>1.1.2</apiguardian-api.version>
         <hamcrest.version>3.0</hamcrest.version>
-        <junit-jupiter.version>5.13.4</junit-jupiter.version>
+        <junit-jupiter.version>6.0.0-RC3</junit-jupiter.version>
         <mockito.version>5.20.0</mockito.version>
         <typetools.version>0.6.3</typetools.version>
     </properties>
diff --git a/cucumber-junit-platform-engine/pom.xml b/cucumber-junit-platform-engine/pom.xml
index d334573f34..9261038ca5 100644
--- a/cucumber-junit-platform-engine/pom.xml
+++ b/cucumber-junit-platform-engine/pom.xml
@@ -13,7 +13,7 @@
 
     <properties>
         <hamcrest.version>3.0</hamcrest.version>
-        <junit-jupiter.version>5.13.4</junit-jupiter.version>
+        <junit-jupiter.version>6.0.0-RC3</junit-jupiter.version>
     </properties>
 
     <dependencyManagement>
@@ -92,6 +92,14 @@
                     </archive>
                 </configuration>
             </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <configuration>
+                    <source>17</source>
+                    <target>17</target>
+                </configuration>
+            </plugin>
         </plugins>
     </build>
 
diff --git a/cucumber-junit-platform-engine/src/test/java/io/cucumber/junit/platform/engine/EmptyConfigurationParameters.java b/cucumber-junit-platform-engine/src/test/java/io/cucumber/junit/platform/engine/EmptyConfigurationParameters.java
index e7d8c36bb0..bcc49553c8 100644
--- a/cucumber-junit-platform-engine/src/test/java/io/cucumber/junit/platform/engine/EmptyConfigurationParameters.java
+++ b/cucumber-junit-platform-engine/src/test/java/io/cucumber/junit/platform/engine/EmptyConfigurationParameters.java
@@ -18,11 +18,6 @@ public Optional<Boolean> getBoolean(String key) {
         return Optional.empty();
     }
 
-    @Override
-    public int size() {
-        return 0;
-    }
-
     @Override
     public Set<String> keySet() {
         return Collections.emptySet();
diff --git a/cucumber-junit-platform-engine/src/test/java/io/cucumber/junit/platform/engine/MapConfigurationParameters.java b/cucumber-junit-platform-engine/src/test/java/io/cucumber/junit/platform/engine/MapConfigurationParameters.java
index d100d150f6..71ce62ed73 100644
--- a/cucumber-junit-platform-engine/src/test/java/io/cucumber/junit/platform/engine/MapConfigurationParameters.java
+++ b/cucumber-junit-platform-engine/src/test/java/io/cucumber/junit/platform/engine/MapConfigurationParameters.java
@@ -29,11 +29,6 @@ public Optional<Boolean> getBoolean(String key) {
         return get(key, Boolean::valueOf);
     }
 
-    @Override
-    public int size() {
-        return 0;
-    }
-
     @Override
     public Set<String> keySet() {
         return parameters.keySet();
diff --git a/cucumber-junit/pom.xml b/cucumber-junit/pom.xml
index fb195430ff..9411af8eb0 100644
--- a/cucumber-junit/pom.xml
+++ b/cucumber-junit/pom.xml
@@ -14,7 +14,7 @@
     <properties>
         <apiguardian-api.version>1.1.2</apiguardian-api.version>
         <hamcrest.version>3.0</hamcrest.version>
-        <junit-jupiter.version>5.13.4</junit-jupiter.version>
+        <junit-jupiter.version>6.0.0-RC3</junit-jupiter.version>
         <junit.version>4.13.2</junit.version>
         <mockito.version>5.20.0</mockito.version>
         <project.Automatic-Module-Name>io.cucumber.junit</project.Automatic-Module-Name>
diff --git a/cucumber-kotlin-java8/pom.xml b/cucumber-kotlin-java8/pom.xml
index ded2c99d2c..079202ad7d 100644
--- a/cucumber-kotlin-java8/pom.xml
+++ b/cucumber-kotlin-java8/pom.xml
@@ -14,7 +14,7 @@
     <properties>
         <project.Automatic-Module-Name>io.cucumber.kotlin.java8</project.Automatic-Module-Name>
         <kotlin.version>2.2.20</kotlin.version>
-        <junit-jupiter.version>5.13.4</junit-jupiter.version>
+        <junit-jupiter.version>6.0.0-RC3</junit-jupiter.version>
     </properties>
 
     <dependencyManagement>
diff --git a/cucumber-openejb/pom.xml b/cucumber-openejb/pom.xml
index a1e0a34ada..a5ef1b44a1 100644
--- a/cucumber-openejb/pom.xml
+++ b/cucumber-openejb/pom.xml
@@ -14,7 +14,7 @@
     <properties>
         <apiguardian-api.version>1.1.2</apiguardian-api.version>
         <hamcrest.version>3.0</hamcrest.version>
-        <junit-jupiter.version>5.13.4</junit-jupiter.version>
+        <junit-jupiter.version>6.0.0-RC3</junit-jupiter.version>
         <openejb-core.version>8.0.16</openejb-core.version>
         <project.Automatic-Module-Name>io.cucumber.openejb</project.Automatic-Module-Name>
     </properties>
diff --git a/cucumber-picocontainer/pom.xml b/cucumber-picocontainer/pom.xml
index 31f180e89e..aa2fdaf528 100644
--- a/cucumber-picocontainer/pom.xml
+++ b/cucumber-picocontainer/pom.xml
@@ -15,7 +15,7 @@
         <project.Automatic-Module-Name>io.cucumber.picocontainer</project.Automatic-Module-Name>
         <picocontainer.version>2.15.2</picocontainer.version>
         <apiguardian-api.version>1.1.2</apiguardian-api.version>
-        <junit-jupiter.version>5.13.4</junit-jupiter.version>
+        <junit-jupiter.version>6.0.0-RC3</junit-jupiter.version>
     </properties>
 
     <dependencyManagement>
diff --git a/cucumber-plugin/pom.xml b/cucumber-plugin/pom.xml
index e8be221f54..d82d372a1f 100644
--- a/cucumber-plugin/pom.xml
+++ b/cucumber-plugin/pom.xml
@@ -12,7 +12,7 @@
     <description>Plugin interface for Cucumber-JVM</description>
 
     <properties>
-        <junit-jupiter.version>5.13.4</junit-jupiter.version>
+        <junit-jupiter.version>6.0.0-RC3</junit-jupiter.version>
         <apiguardian-api.version>1.1.2</apiguardian-api.version>
         <project.Automatic-Module-Name>io.cucumber.plugin</project.Automatic-Module-Name>
     </properties>
diff --git a/cucumber-spring/pom.xml b/cucumber-spring/pom.xml
index 15bd1021ed..2603c19b9e 100644
--- a/cucumber-spring/pom.xml
+++ b/cucumber-spring/pom.xml
@@ -14,7 +14,7 @@
     <properties>
         <apiguardian-api.version>1.1.2</apiguardian-api.version>
         <hamcrest.version>3.0</hamcrest.version>
-        <junit-jupiter.version>5.13.4</junit-jupiter.version>
+        <junit-jupiter.version>6.0.0-RC3</junit-jupiter.version>
         <spring.version>6.2.11</spring.version>
         <project.Automatic-Module-Name>io.cucumber.spring</project.Automatic-Module-Name>
         <mockito.version>5.20.0</mockito.version>
diff --git a/datatable-matchers/pom.xml b/datatable-matchers/pom.xml
index a8d364eae2..2a755dbfce 100644
--- a/datatable-matchers/pom.xml
+++ b/datatable-matchers/pom.xml
@@ -17,7 +17,7 @@
         <apiguardian-api.version>1.1.2</apiguardian-api.version>
         <guava.version>33.5.0-jre</guava.version>
         <hamcrest.version>3.0</hamcrest.version>
-        <junit-jupiter.version>5.13.4</junit-jupiter.version>
+        <junit-jupiter.version>6.0.0-RC3</junit-jupiter.version>
     </properties>
 
     <dependencyManagement>
diff --git a/datatable/pom.xml b/datatable/pom.xml
index 62136e2c7a..d8a0d1d9ef 100644
--- a/datatable/pom.xml
+++ b/datatable/pom.xml
@@ -19,7 +19,7 @@
         <guava.version>33.5.0-jre</guava.version>
         <hamcrest.version>3.0</hamcrest.version>
         <jackson.version>2.20.0</jackson.version>
-        <junit-jupiter.version>5.13.4</junit-jupiter.version>
+        <junit-jupiter.version>6.0.0-RC3</junit-jupiter.version>
         <mockito.version>5.20.0</mockito.version>
     </properties>
 
diff --git a/docstring/pom.xml b/docstring/pom.xml
index 30a2b9a753..bc2263def7 100644
--- a/docstring/pom.xml
+++ b/docstring/pom.xml
@@ -13,7 +13,7 @@
 
     <properties>
         <jackson.version>2.20.0</jackson.version>
-        <junit-jupiter.version>5.13.4</junit-jupiter.version>
+        <junit-jupiter.version>6.0.0-RC3</junit-jupiter.version>
         <apiguardian-api.version>1.1.2</apiguardian-api.version>
         <project.Automatic-Module-Name>io.cucumber.docstring</project.Automatic-Module-Name>
         <hamcrest.version>3.0</hamcrest.version>
diff --git a/examples/calculator-java-junit5/pom.xml b/examples/calculator-java-junit5/pom.xml
index 5290566cbf..64aaa1c7aa 100644
--- a/examples/calculator-java-junit5/pom.xml
+++ b/examples/calculator-java-junit5/pom.xml
@@ -28,7 +28,7 @@
             <dependency>
                 <groupId>org.junit</groupId>
                 <artifactId>junit-bom</artifactId>
-                <version>5.13.1</version>
+                <version>6.0.0-RC3</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
@@ -118,6 +118,7 @@
                                 <java classname="org.junit.platform.console.ConsoleLauncher" fork="true"
                                       failonerror="true" newenvironment="true" maxmemory="512m"
                                       classpathref="maven.test.classpath">
+                                    <arg value="execute"/>
                                     <arg value="--include-engine"/>
                                     <arg value="cucumber"/>
                                     <arg value="--scan-classpath"/>
diff --git a/examples/calculator-kotlin-junit5/pom.xml b/examples/calculator-kotlin-junit5/pom.xml
index 75419eaa82..efd2c5a327 100644
--- a/examples/calculator-kotlin-junit5/pom.xml
+++ b/examples/calculator-kotlin-junit5/pom.xml
@@ -31,7 +31,7 @@
             <dependency>
                 <groupId>org.junit</groupId>
                 <artifactId>junit-bom</artifactId>
-                <version>5.13.1</version>
+                <version>6.0.0-RC3</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
@@ -140,6 +140,7 @@
                                 <java classname="org.junit.platform.console.ConsoleLauncher" fork="true"
                                       failonerror="true" newenvironment="true" maxmemory="512m"
                                       classpathref="maven.test.classpath">
+                                    <arg value="execute"/>
                                     <arg value="--include-engine"/>
                                     <arg value="cucumber"/>
                                     <arg value="--scan-classpath"/>
diff --git a/examples/spring-java-junit5/pom.xml b/examples/spring-java-junit5/pom.xml
index 7c03c859d3..832b567dcb 100644
--- a/examples/spring-java-junit5/pom.xml
+++ b/examples/spring-java-junit5/pom.xml
@@ -13,7 +13,7 @@
     <properties>
         <project.Automatic-Module-Name>io.cucumber.examples.spring.application</project.Automatic-Module-Name>
         <spring-boot.version>3.5.0</spring-boot.version>
-        <junit.version>5.13.1</junit.version>
+        <junit.version>6.0.0-RC3</junit.version>
     </properties>
 
     <dependencyManagement>
diff --git a/examples/wicket-java-junit4/wicket-main/pom.xml b/examples/wicket-java-junit4/wicket-main/pom.xml
index 61294a0bc2..b7c87b1680 100644
--- a/examples/wicket-java-junit4/wicket-main/pom.xml
+++ b/examples/wicket-java-junit4/wicket-main/pom.xml
@@ -14,7 +14,7 @@
         <wicket.version>9.4.0</wicket.version>
         <jetty.version>9.4.43.v20210629</jetty.version>
         <jcl-over-slf4.version>2.0.5</jcl-over-slf4.version>
-        <junit-jupiter.version>5.13.1</junit-jupiter.version>
+        <junit-jupiter.version>6.0.0-RC3</junit-jupiter.version>
         <logback-classic.version>1.4.7</logback-classic.version>
     </properties>
 
diff --git a/examples/wicket-java-junit4/wicket-test/pom.xml b/examples/wicket-java-junit4/wicket-test/pom.xml
index ad5e100311..c33e119e72 100644
--- a/examples/wicket-java-junit4/wicket-test/pom.xml
+++ b/examples/wicket-java-junit4/wicket-test/pom.xml
@@ -10,7 +10,7 @@
 
     <properties>
         <project.Automatic-Module-Name>io.cucumber.examples.wicket.test</project.Automatic-Module-Name>
-        <junit-jupiter.version>5.13.1</junit-jupiter.version>
+        <junit-jupiter.version>6.0.0-RC3</junit-jupiter.version>
         <htmlunit.version>4.13.0</htmlunit.version>
     </properties>