diff --git a/pom.xml b/pom.xml
index 54d43ab..4cd8838 100644
--- a/pom.xml
+++ b/pom.xml
@@ -204,12 +204,6 @@
       <version>4.3.0</version>
       <scope>test</scope>
     </dependency>
-    <dependency>
-      <groupId>org.jenkins-ci.plugins</groupId>
-      <artifactId>extended-choice-parameter</artifactId>
-      <version>388.ve7b_d0b_920e10</version>
-      <scope>test</scope>
-    </dependency>
     <dependency>
       <groupId>org.jenkins-ci.plugins</groupId>
       <artifactId>git</artifactId>
diff --git a/src/main/java/io/jenkins/plugins/mcp/server/extensions/util/ParameterValueFactory.java b/src/main/java/io/jenkins/plugins/mcp/server/extensions/util/ParameterValueFactory.java
index f8d3939..fb6f883 100644
--- a/src/main/java/io/jenkins/plugins/mcp/server/extensions/util/ParameterValueFactory.java
+++ b/src/main/java/io/jenkins/plugins/mcp/server/extensions/util/ParameterValueFactory.java
@@ -36,7 +36,6 @@
 import hudson.model.StringParameterDefinition;
 import hudson.model.TextParameterDefinition;
 import java.util.List;
-import java.util.stream.Collectors;
 import lombok.extern.slf4j.Slf4j;
 
 /**
@@ -50,8 +49,6 @@ public final class ParameterValueFactory {
             "net.uaznia.lukanus.hudson.plugins.gitparameter.GitParameterDefinition";
     public static final String LIST_GIT_BRANCHES_PARAMETER_DEFINITION =
             "com.syhuang.hudson.plugins.listgitbranchesparameter.ListGitBranchesParameterDefinition";
-    public static final String EXTENDED_CHOICE_PARAMETER_DEFINITION =
-            "com.cwctravel.hudson.plugins.extended_choice_parameter.ExtendedChoiceParameterDefinition";
     public static final String VALIDATING_STRING_PARAMETER_DEFINITION =
             "hudson.plugins.validating_string_parameter.ValidatingStringParameterDefinition";
 
@@ -69,8 +66,6 @@ public static ParameterValue createParameterValue(ParameterDefinition param, Obj
                 return createGitParameterValue(param, inputValue);
             } else if (isParameterDefinitionOf(param, LIST_GIT_BRANCHES_PARAMETER_DEFINITION)) {
                 return createListGitBranchesParameterValue(param, inputValue);
-            } else if (isParameterDefinitionOf(param, EXTENDED_CHOICE_PARAMETER_DEFINITION)) {
-                return createExtendedChoiceParameterValue(param, inputValue);
             } else if (isParameterDefinitionOf(param, VALIDATING_STRING_PARAMETER_DEFINITION)) {
                 return createParameterValueViaCli(param, String.valueOf(inputValue));
             } else if (param instanceof StringParameterDefinition) {
@@ -190,16 +185,6 @@ private static ParameterValue createListGitBranchesParameterValue(ParameterDefin
         return createParameterValueViaCli(param, String.valueOf(inputValue));
     }
 
-    private static ParameterValue createExtendedChoiceParameterValue(ParameterDefinition param, Object inputValue) {
-        String valuesAsString;
-        if (inputValue instanceof List<?> l) {
-            valuesAsString = l.stream().map(Object::toString).collect(Collectors.joining(","));
-        } else {
-            valuesAsString = String.valueOf(inputValue);
-        }
-        return createParameterValueViaCli(param, valuesAsString);
-    }
-
     private static ParameterValue createParameterValueViaCli(ParameterDefinition param, String inputValue) {
         String paramTypeName = param.getClass().getSimpleName();
         try {
diff --git a/src/test/java/io/jenkins/plugins/mcp/server/extensions/util/ParameterValueFactoryExtendedChoiceParameterTest.java b/src/test/java/io/jenkins/plugins/mcp/server/extensions/util/ParameterValueFactoryExtendedChoiceParameterTest.java
deleted file mode 100644
index eb7b0f5..0000000
--- a/src/test/java/io/jenkins/plugins/mcp/server/extensions/util/ParameterValueFactoryExtendedChoiceParameterTest.java
+++ /dev/null
@@ -1,63 +0,0 @@
-package io.jenkins.plugins.mcp.server.extensions.util;
-
-import static com.cwctravel.hudson.plugins.extended_choice_parameter.ExtendedChoiceParameterDefinition.PARAMETER_TYPE_CHECK_BOX;
-import static org.assertj.core.api.Assertions.assertThat;
-
-import com.cwctravel.hudson.plugins.extended_choice_parameter.ExtendedChoiceParameterDefinition;
-import com.cwctravel.hudson.plugins.extended_choice_parameter.ExtendedChoiceParameterValue;
-import hudson.model.ParameterValue;
-import java.util.List;
-import java.util.stream.Stream;
-import org.junit.jupiter.params.ParameterizedTest;
-import org.junit.jupiter.params.provider.Arguments;
-import org.junit.jupiter.params.provider.MethodSource;
-
-class ParameterValueFactoryExtendedChoiceParameterTest {
-
-    public static Stream<Arguments> extendedChoiceSources() {
-        return Stream.of(Arguments.of("feature, bug"), Arguments.of(List.of("feature", "bug")));
-    }
-
-    @ParameterizedTest
-    @MethodSource("extendedChoiceSources")
-    void createsExtendedChoiceParameterValueUsingCliOverload(Object inputValue) {
-        var param = new ExtendedChoiceParameterDefinition(
-                "test",
-                PARAMETER_TYPE_CHECK_BOX,
-                "feature,bug,fix",
-                null,
-                null,
-                null,
-                null,
-                null,
-                null,
-                null,
-                null,
-                null,
-                null,
-                null,
-                null,
-                null,
-                null,
-                null,
-                null,
-                null,
-                null,
-                null,
-                null,
-                null,
-                null,
-                null,
-                false,
-                false,
-                5,
-                "test",
-                ",");
-        ParameterValue value = ParameterValueFactory.createParameterValue(param, inputValue);
-
-        assertThat(value)
-                .isInstanceOfSatisfying(
-                        ExtendedChoiceParameterValue.class,
-                        v -> assertThat(v.getValue()).isEqualTo("feature,bug"));
-    }
-}