diff --git a/pom.xml b/pom.xml
index d4daa2c..5bc3090 100644
--- a/pom.xml
+++ b/pom.xml
@@ -6,7 +6,7 @@
     <parent>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-parent</artifactId>
-        <version>3.3.8</version>
+        <version>3.4.2</version>
         <relativePath/> <!-- lookup parent from repository -->
     </parent>
 
@@ -86,7 +86,7 @@
         <dependency>
             <groupId>org.springdoc</groupId>
             <artifactId>springdoc-openapi-starter-webmvc-ui</artifactId>
-            <version>2.6.0</version>
+            <version>2.8.5</version>
         </dependency>
 
         <!-- Testing -->
diff --git a/src/main/java/it/aboutbits/springboot/toolbox/swagger/customization/default_not_null/NullableCustomizer.java b/src/main/java/it/aboutbits/springboot/toolbox/swagger/customization/default_not_null/NullableCustomizer.java
index 26a2b53..48574c5 100644
--- a/src/main/java/it/aboutbits/springboot/toolbox/swagger/customization/default_not_null/NullableCustomizer.java
+++ b/src/main/java/it/aboutbits/springboot/toolbox/swagger/customization/default_not_null/NullableCustomizer.java
@@ -18,9 +18,12 @@ public void customise(OpenAPI openApi) {
                     if (((Schema<?>) schema).getProperties() != null) {
                         var requiredProperties = new ArrayList<String>();
                         ((Schema<?>) schema).getProperties().forEach((propertyName, property) -> {
-                            if (property.getNullable() == null || !property.getNullable()) {
+                            if (property.getTitle() == null || !property.getTitle().equals("NULLABLE")) {
                                 requiredProperties.add(propertyName);
                             }
+                            if (property.getTitle() != null && property.getTitle().equals("NULLABLE")) {
+                                property.setTitle(null);
+                            }
                         });
                         schema.setRequired(requiredProperties);
                     }
diff --git a/src/main/java/it/aboutbits/springboot/toolbox/swagger/customization/default_not_null/NullablePropertyCustomizer.java b/src/main/java/it/aboutbits/springboot/toolbox/swagger/customization/default_not_null/NullablePropertyCustomizer.java
index a8fdf57..47b0cbf 100644
--- a/src/main/java/it/aboutbits/springboot/toolbox/swagger/customization/default_not_null/NullablePropertyCustomizer.java
+++ b/src/main/java/it/aboutbits/springboot/toolbox/swagger/customization/default_not_null/NullablePropertyCustomizer.java
@@ -31,7 +31,7 @@ public Schema<?> customize(Schema property, AnnotatedType annotatedType) {
 
         if (annotatedType.getCtxAnnotations() != null && Arrays.stream(annotatedType.getCtxAnnotations())
                 .anyMatch(a -> "Nullable".equals(a.annotationType().getSimpleName()))) {
-            property.setNullable(true);
+            property.setTitle("NULLABLE");
         }
 
         return property;