diff --git a/telegram-domain/telegram-domain-main/src/main/java/dev/struchkov/godfather/telegram/domain/keyboard/button/ContactButton.java b/telegram-domain/telegram-domain-main/src/main/java/dev/struchkov/godfather/telegram/domain/keyboard/button/ContactButton.java
index 1527e5c..73d3594 100644
--- a/telegram-domain/telegram-domain-main/src/main/java/dev/struchkov/godfather/telegram/domain/keyboard/button/ContactButton.java
+++ b/telegram-domain/telegram-domain-main/src/main/java/dev/struchkov/godfather/telegram/domain/keyboard/button/ContactButton.java
@@ -1,7 +1,9 @@
 package dev.struchkov.godfather.telegram.domain.keyboard.button;
 
 import dev.struchkov.godfather.main.domain.keyboard.KeyBoardButton;
-import org.jetbrains.annotations.NotNull;
+
+import static dev.struchkov.haiti.utils.Inspector.Utils.nullPointer;
+import static dev.struchkov.haiti.utils.Inspector.isNotNull;
 
 /**
  * Запрашивает у пользователя его контактный номер.
@@ -16,7 +18,8 @@ public class ContactButton implements KeyBoardButton {
         this.label = label;
     }
 
-    public static ContactButton contactButton(@NotNull String label) {
+    public static ContactButton contactButton(String label) {
+        isNotNull(label, nullPointer("label"));
         return new ContactButton(label);
     }
 
diff --git a/telegram-domain/telegram-domain-main/src/main/java/dev/struchkov/godfather/telegram/domain/keyboard/button/UrlButton.java b/telegram-domain/telegram-domain-main/src/main/java/dev/struchkov/godfather/telegram/domain/keyboard/button/UrlButton.java
index ae001de..fafdab4 100644
--- a/telegram-domain/telegram-domain-main/src/main/java/dev/struchkov/godfather/telegram/domain/keyboard/button/UrlButton.java
+++ b/telegram-domain/telegram-domain-main/src/main/java/dev/struchkov/godfather/telegram/domain/keyboard/button/UrlButton.java
@@ -1,7 +1,8 @@
 package dev.struchkov.godfather.telegram.domain.keyboard.button;
 
 import dev.struchkov.godfather.main.domain.keyboard.KeyBoardButton;
-import org.jetbrains.annotations.NotNull;
+
+import static dev.struchkov.haiti.utils.Inspector.isNotNull;
 
 public class UrlButton implements KeyBoardButton {
 
@@ -15,7 +16,8 @@ public class UrlButton implements KeyBoardButton {
         this.url = url;
     }
 
-    public static UrlButton urlButton(@NotNull String label, @NotNull String url) {
+    public static UrlButton urlButton(String label, String url) {
+        isNotNull(label, url);
         return new UrlButton(label, url);
     }
 
@@ -31,4 +33,5 @@ public class UrlButton implements KeyBoardButton {
     public String getUrl() {
         return url;
     }
+
 }
diff --git a/telegram-domain/telegram-domain-main/src/main/java/dev/struchkov/godfather/telegram/domain/keyboard/button/WebAppButton.java b/telegram-domain/telegram-domain-main/src/main/java/dev/struchkov/godfather/telegram/domain/keyboard/button/WebAppButton.java
index 64c9279..78e9404 100644
--- a/telegram-domain/telegram-domain-main/src/main/java/dev/struchkov/godfather/telegram/domain/keyboard/button/WebAppButton.java
+++ b/telegram-domain/telegram-domain-main/src/main/java/dev/struchkov/godfather/telegram/domain/keyboard/button/WebAppButton.java
@@ -1,7 +1,8 @@
 package dev.struchkov.godfather.telegram.domain.keyboard.button;
 
 import dev.struchkov.godfather.main.domain.keyboard.KeyBoardButton;
-import org.jetbrains.annotations.NotNull;
+
+import static dev.struchkov.haiti.utils.Inspector.isNotNull;
 
 public class WebAppButton implements KeyBoardButton {
 
@@ -15,7 +16,8 @@ public class WebAppButton implements KeyBoardButton {
         this.url = url;
     }
 
-    public static WebAppButton webAppButton(@NotNull String label, @NotNull String url) {
+    public static WebAppButton webAppButton(String label, String url) {
+        isNotNull(label, url);
         return new WebAppButton(label, url);
     }