diff --git a/CHANGELOG.md b/CHANGELOG.md
index 213eafa66f9..b3ef5f46c11 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -24,9 +24,10 @@
 * Fix #3896: added dsl support for server side apply
 * Fix #4582: updated [client.secrets] createOrReplace document
 
-#### _**Note**_: Breaking changes in the API
+#### _**Note**_: Breaking changes
 * Fix #4515: files located at the root of jars named model.properties, e.g. core.properties, have been removed
 * Fix #3923: removed KubernetesResourceMappingProvider - a META-INF/services/io.fabric8.kubernetes.api.model.KubernetesResource list of resources is used instead.
+* Fix #4597: remove the deprecated support for `javax.validation.constraints.NotNull` in the `crd-generator`, to mark a property as `required` it needs to be annotated with `io.fabric8.generator.annotation.Required`
 
 ### 6.2.0 (2022-10-20)
 
diff --git a/crd-generator/api/src/main/java/io/fabric8/crd/generator/AbstractJsonSchema.java b/crd-generator/api/src/main/java/io/fabric8/crd/generator/AbstractJsonSchema.java
index f3af4550d3c..b7f719d736c 100644
--- a/crd-generator/api/src/main/java/io/fabric8/crd/generator/AbstractJsonSchema.java
+++ b/crd-generator/api/src/main/java/io/fabric8/crd/generator/AbstractJsonSchema.java
@@ -85,7 +85,6 @@ public abstract class AbstractJsonSchema<T, B> {
   public static final String ANNOTATION_PATTERN = "io.fabric8.generator.annotation.Pattern";
   public static final String ANNOTATION_NULLABLE = "io.fabric8.generator.annotation.Nullable";
   public static final String ANNOTATION_REQUIRED = "io.fabric8.generator.annotation.Required";
-  public static final String ANNOTATION_NOT_NULL = "javax.validation.constraints.NotNull";
   public static final String ANNOTATION_SCHEMA_FROM = "io.fabric8.crd.generator.annotation.SchemaFrom";
   public static final String ANNOTATION_PERSERVE_UNKNOWN_FIELDS = "io.fabric8.crd.generator.annotation.PreserveUnknownFields";
   public static final String ANNOTATION_SCHEMA_SWAP = "io.fabric8.crd.generator.annotation.SchemaSwap";
@@ -358,11 +357,6 @@ public void process() {
           case ANNOTATION_PATTERN:
             pattern = (String) a.getParameters().get(VALUE);
             break;
-          case ANNOTATION_NOT_NULL:
-            LOGGER.warn("Annotation: {} on property: {} is deprecated. Please use: {} instead", ANNOTATION_NOT_NULL, name,
-                ANNOTATION_REQUIRED);
-            required = true;
-            break;
           case ANNOTATION_REQUIRED:
             required = true;
             break;
diff --git a/crd-generator/api/src/test/java/io/fabric8/crd/example/annotated/AnnotatedSpec.java b/crd-generator/api/src/test/java/io/fabric8/crd/example/annotated/AnnotatedSpec.java
index 7ff0b398eda..85ddfcfc428 100644
--- a/crd-generator/api/src/test/java/io/fabric8/crd/example/annotated/AnnotatedSpec.java
+++ b/crd-generator/api/src/test/java/io/fabric8/crd/example/annotated/AnnotatedSpec.java
@@ -24,8 +24,6 @@
 import io.fabric8.generator.annotation.Pattern;
 import io.fabric8.generator.annotation.Required;
 
-import javax.validation.constraints.NotNull;
-
 public class AnnotatedSpec {
   @JsonProperty("from-field")
   @JsonPropertyDescription("from-field-description")
@@ -37,7 +35,7 @@ public class AnnotatedSpec {
   private int max;
   private String singleDigit;
   private String nullable;
-  @NotNull
+  @Required
   private boolean emptySetter;
   @Required
   private boolean emptySetter2;
@@ -52,7 +50,7 @@ public class AnnotatedSpec {
 
   @JsonProperty("from-getter")
   @JsonPropertyDescription("from-getter-description")
-  @NotNull
+  @Required
   public int getFoo() {
     return foo;
   }
diff --git a/crd-generator/api/src/test/java/io/fabric8/crd/example/extraction/FooExtractor.java b/crd-generator/api/src/test/java/io/fabric8/crd/example/extraction/FooExtractor.java
index 8ada874366e..f0872d1206f 100644
--- a/crd-generator/api/src/test/java/io/fabric8/crd/example/extraction/FooExtractor.java
+++ b/crd-generator/api/src/test/java/io/fabric8/crd/example/extraction/FooExtractor.java
@@ -16,13 +16,12 @@
 package io.fabric8.crd.example.extraction;
 
 import com.fasterxml.jackson.annotation.JsonProperty;
-
-import javax.validation.constraints.NotNull;
+import io.fabric8.generator.annotation.Required;
 
 public class FooExtractor {
 
   @JsonProperty("BAZ")
-  @NotNull
+  @Required
   public int bar;
 
 }
diff --git a/crd-generator/test/src/test/java/io/fabric8/crd/generator/zookeeper/v1/ZookeeperSpec.java b/crd-generator/test/src/test/java/io/fabric8/crd/generator/zookeeper/v1/ZookeeperSpec.java
index 16f114b12bb..7675e05651d 100644
--- a/crd-generator/test/src/test/java/io/fabric8/crd/generator/zookeeper/v1/ZookeeperSpec.java
+++ b/crd-generator/test/src/test/java/io/fabric8/crd/generator/zookeeper/v1/ZookeeperSpec.java
@@ -15,15 +15,14 @@
  */
 package io.fabric8.crd.generator.zookeeper.v1;
 
+import io.fabric8.generator.annotation.Required;
 import io.fabric8.kubernetes.model.annotation.SpecReplicas;
 
-import javax.validation.constraints.NotNull;
-
 public class ZookeeperSpec {
 
   @SpecReplicas
   private int size;
-  @NotNull
+  @Required
   private String version;
   private boolean ephemeral;
 }
diff --git a/doc/CRD-generator.md b/doc/CRD-generator.md
index 1b08484ee38..bdce1ea4157 100644
--- a/doc/CRD-generator.md
+++ b/doc/CRD-generator.md
@@ -250,13 +250,11 @@ The field will have the `nullable` property in the generated CRD, such as:
 
 ### io.fabric8.generator.annotation.Required
 
-__DEPRECATED:__ `javax.validation.constraints.NotNull`
-
 If a field or one of its accessors is annotated with `io.fabric8.generator.annotation.Required`
 
 ```java
 public class ExampleSpec {
-  @NotNull
+  @Required
   int someValue;
 }
 ```