diff --git a/testing-modules/mockito/pom.xml b/testing-modules/mockito/pom.xml
index 1ec1ffe7bd..cdd73e6efe 100644
--- a/testing-modules/mockito/pom.xml
+++ b/testing-modules/mockito/pom.xml
@@ -46,14 +46,14 @@
             <version>${powermock.version}</version>
             <scope>test</scope>
         </dependency>
-        
+
         <dependency>
             <groupId>org.hamcrest</groupId>
             <artifactId>java-hamcrest</artifactId>
-            <version>2.0.0.0</version>
+            <version>${hamcrest.version}</version>
             <scope>test</scope>
         </dependency>
-        
+
     </dependencies>
 
     <build>
@@ -74,6 +74,7 @@
 
         <!-- testing -->
         <powermock.version>1.7.0</powermock.version>
+        <hamcrest.version>2.0.0.0</hamcrest.version>
 
     </properties>
 
diff --git a/testing-modules/mockito/src/test/java/org/baeldung/hamcrest/HamcrestNumberUnitTest.java b/testing-modules/mockito/src/test/java/org/baeldung/hamcrest/HamcrestNumberUnitTest.java
index 21606afd79..fbba6b94d2 100644
--- a/testing-modules/mockito/src/test/java/org/baeldung/hamcrest/HamcrestNumberUnitTest.java
+++ b/testing-modules/mockito/src/test/java/org/baeldung/hamcrest/HamcrestNumberUnitTest.java
@@ -6,8 +6,15 @@ import java.math.BigDecimal;
 import java.time.LocalDate;
 
 import static org.hamcrest.MatcherAssert.assertThat;
-import static org.hamcrest.Matchers.*;
+import static org.hamcrest.Matchers.is;
 import static org.hamcrest.Matchers.closeTo;
+import static org.hamcrest.Matchers.not;
+import static org.hamcrest.Matchers.greaterThan;
+import static org.hamcrest.Matchers.greaterThanOrEqualTo;
+import static org.hamcrest.Matchers.lessThan;
+import static org.hamcrest.Matchers.lessThanOrEqualTo;
+import static org.hamcrest.Matchers.comparesEqualTo;
+import static org.hamcrest.Matchers.notANumber;
 
 public class HamcrestNumberUnitTest {
 
@@ -43,6 +50,19 @@ public class HamcrestNumberUnitTest {
         assertThat(actual, is(not(closeTo(operand, error))));
     }
 
+    @Test
+    public void given5_whenComparesEqualTo5_thenCorrect() {
+        Integer five = 5;
+        assertThat(five, comparesEqualTo(five));
+    }
+
+    @Test
+    public void given5_whenNotComparesEqualTo7_thenCorrect() {
+        Integer seven = 7;
+        Integer five = 5;
+        assertThat(five, not(comparesEqualTo(seven)));
+    }
+
     @Test
     public void given7_whenGreaterThan5_thenCorrect() {
         Integer seven = 7;
@@ -149,4 +169,10 @@ public class HamcrestNumberUnitTest {
             else return -1;
         }
     }
+
+    @Test
+    public void givenNaN_whenIsNotANumber_thenCorrect() {
+        double zero = 0d;
+        assertThat(zero / zero, is(notANumber()));
+    }
 }