diff --git a/demos/warnings/README.md b/demos/warnings/README.md
deleted file mode 100644
index c41e020de0..0000000000
--- a/demos/warnings/README.md
+++ /dev/null
@@ -1,46 +0,0 @@
-# Configure Warnings Next Generation Plugin
-
-The available parsers of the [Warnings Next Generation Plugin](https://plugins.jenkins.io/warnings-ng)
-can be specified using the following sample configuration. Afterwards,
-these parsers are shown in the `Groovy Based Warnings Parsers` section of the system configuration.
-
-## Sample configuration (parsers)
-
-Required plugin version: 5.0.0 or newer.
-
-```yaml
-unclassified:
-  warningsParsers:
-    parsers:
-      - name: "Example parser"
-        id: example-id
-        regexp: "^\\s*(.*):(\\d+):(.*):\\s*(.*)$"
-        script: |
-          import edu.hm.hafner.analysis.Severity
-          builder.setFileName(matcher.group(1))
-                  .setLineStart(Integer.parseInt(matcher.group(2)))
-                  .setSeverity(Severity.WARNING_NORMAL)
-                  .setCategory(matcher.group(3))
-                  .setMessage(matcher.group(4))
-          return builder.buildOptional();
-        example: "somefile.txt:2:SeriousWarnings:SomethingWentWrong"
-```
-
-This `Example Parser` parser will parse the following warning from the console log:
-```text
-somefile.txt:2:SeriousWarnings:SomethingWentWrong
-```
-
-It will produce a warning with the following properties:
-
-| property    | value              |
-|-------------|--------------------|
-| file name   | somefile.txt       |
-| line number | 2                  |
-| severity    | NORMAL             |
-| category    | SeriousWarnings    |
-| type        | -                  |
-| message     | SomethingWentWrong |
-
-See [documentation](https://github.com/jenkinsci/warnings-ng-plugin/blob/master/doc/Documentation.md) of the
-Warnings Next Generation Plugin for more details about the parsers.
diff --git a/integrations/pom.xml b/integrations/pom.xml
index 6f2d018196..28d5ff3839 100644
--- a/integrations/pom.xml
+++ b/integrations/pom.xml
@@ -15,6 +15,7 @@
     <maven.deploy.skip>true</maven.deploy.skip> <!-- no need to be deployed during release, this is a test-only module -->
     <jackson.version>2.11.3</jackson.version>
     <netty.version>4.1.52.Final</netty.version>
+    <jenkins.version>2.263.1</jenkins.version>
   </properties>
 
   <dependencies>
@@ -193,6 +194,12 @@
       <groupId>commons-validator</groupId>
       <artifactId>commons-validator</artifactId>
       <version>1.7</version>
+      <exclusions>
+        <exclusion>
+          <groupId>commons-beanutils</groupId>
+          <artifactId>commons-beanutils</artifactId>
+        </exclusion>
+      </exclusions>
     </dependency>
 
     <dependency>
@@ -360,13 +367,6 @@
       </exclusions>
     </dependency>
 
-    <dependency>
-      <groupId>org.jvnet.hudson.plugins</groupId>
-      <artifactId>warnings</artifactId>
-      <version>5.0.2</version>
-      <scope>test</scope>
-    </dependency>
-
     <!-- required to satisfy upper bound dependencies -->
 
     <dependency>
@@ -708,15 +708,10 @@
         <artifactId>commons-compress</artifactId>
         <version>1.20</version>
       </dependency>
-      <dependency>
-        <groupId>org.slf4j</groupId>
-        <artifactId>slf4j-api</artifactId>
-        <version>1.7.28</version>
-      </dependency>
       <dependency>
         <groupId>io.jenkins.tools.bom</groupId>
-        <artifactId>bom-2.222.x</artifactId>
-        <version>13</version>
+        <artifactId>bom-2.263.x</artifactId>
+        <version>20</version>
         <scope>import</scope>
         <type>pom</type>
       </dependency>
diff --git a/integrations/src/test/java/io/jenkins/plugins/casc/WarningsTest.java b/integrations/src/test/java/io/jenkins/plugins/casc/WarningsTest.java
deleted file mode 100644
index 49af038bfb..0000000000
--- a/integrations/src/test/java/io/jenkins/plugins/casc/WarningsTest.java
+++ /dev/null
@@ -1,38 +0,0 @@
-package io.jenkins.plugins.casc;
-
-import io.jenkins.plugins.analysis.warnings.groovy.GroovyParser;
-import io.jenkins.plugins.analysis.warnings.groovy.ParserConfiguration;
-import io.jenkins.plugins.casc.misc.ConfiguredWithReadme;
-import io.jenkins.plugins.casc.misc.JenkinsConfiguredWithReadmeRule;
-import org.junit.Rule;
-import org.junit.Test;
-
-import static org.hamcrest.CoreMatchers.containsString;
-import static org.hamcrest.CoreMatchers.is;
-import static org.hamcrest.MatcherAssert.assertThat;
-import static org.hamcrest.collection.IsCollectionWithSize.hasSize;
-import static org.junit.Assert.assertNotNull;
-
-
-/**
- * @author v1v (Victor Martinez)
- */
-public class WarningsTest {
-
-    @Rule
-    public JenkinsConfiguredWithReadmeRule j = new JenkinsConfiguredWithReadmeRule();
-
-    @Test
-    @ConfiguredWithReadme("warnings/README.md")
-    public void configure_warnings() throws Exception {
-        final ParserConfiguration configuration = ParserConfiguration.getInstance();
-        assertNotNull(configuration);
-        assertThat(configuration.getParsers(), hasSize(1));
-        GroovyParser parser = configuration.getParsers().get(0);
-        assertThat(parser.getId(), is("example-id"));
-        assertThat(parser.getName(), is("Example parser"));
-        assertThat(parser.getRegexp(), is("^\\s*(.*):(\\d+):(.*):\\s*(.*)$"));
-        assertThat(parser.getScript(), containsString("import edu.hm.hafner.analysis.Severity"));
-        assertThat(parser.getExample(), is("somefile.txt:2:SeriousWarnings:SomethingWentWrong"));
-    }
-}