diff --git a/pom.xml b/pom.xml
index 6d6a116b..3c420334 100644
--- a/pom.xml
+++ b/pom.xml
@@ -63,7 +63,7 @@
     </pluginRepositories>
     <properties>
         <changelist>999999-SNAPSHOT</changelist>
-        <jenkins.version>2.361.4</jenkins.version>
+        <jenkins.version>2.426.3</jenkins.version>
         <no-test-jar>false</no-test-jar>
         <useBeta>true</useBeta>
         <gitHubRepo>jenkinsci/${project.artifactId}-plugin</gitHubRepo>
@@ -72,8 +72,8 @@
         <dependencies>
             <dependency>
                 <groupId>io.jenkins.tools.bom</groupId>
-                <artifactId>bom-2.361.x</artifactId>
-                <version>2102.v854b_fec19c92</version>
+                <artifactId>bom-2.426.x</artifactId>
+                <version>2555.v3190a_8a_c60c6</version>
                 <scope>import</scope>
                 <type>pom</type>
             </dependency>
diff --git a/src/test/java/org/jenkinsci/plugins/workflow/actions/ErrorActionTest.java b/src/test/java/org/jenkinsci/plugins/workflow/actions/ErrorActionTest.java
index 53d4dd1b..6165330e 100644
--- a/src/test/java/org/jenkinsci/plugins/workflow/actions/ErrorActionTest.java
+++ b/src/test/java/org/jenkinsci/plugins/workflow/actions/ErrorActionTest.java
@@ -40,7 +40,6 @@
 import org.jenkinsci.plugins.workflow.job.WorkflowJob;
 import org.jenkinsci.plugins.workflow.job.WorkflowRun;
 import org.junit.ClassRule;
-import org.junit.Ignore;
 import org.junit.Rule;
 import org.junit.Test;
 import org.jvnet.hudson.test.BuildWatcher;
@@ -237,7 +236,6 @@ public static class X extends Exception {
         assertNotNull(new ErrorAction(cyclic2));
     }
 
-    @Ignore("TODO: broken until https://github.com/jenkinsci/remoting/pull/645 is picked up")
     @Test public void unserializableCyclicErrorsAreSupported() throws Throwable {
         Exception unserializable = new MissingMethodException("thisMethodDoesNotExist", String.class, new Object[0]);
         Exception cyclic = new Exception(unserializable);