diff --git a/jackson/src/test/java/org/baeldung/jackson/deserialization/JacksonDeserializeTest.java b/jackson/src/test/java/org/baeldung/jackson/deserialization/JacksonDeserializeTest.java
index 31a6ae8ef9..503b6eb99b 100644
--- a/jackson/src/test/java/org/baeldung/jackson/deserialization/JacksonDeserializeTest.java
+++ b/jackson/src/test/java/org/baeldung/jackson/deserialization/JacksonDeserializeTest.java
@@ -29,12 +29,12 @@ public class JacksonDeserializeTest {
         final String jsonInput = "{\"imdbId\":\"tt0472043\",\"director\":\"Mel Gibson\",\"actors\":[{\"imdbId\":\"nm2199632\",\"dateOfBirth\":\"1982-09-21T12:00:00+01:00\",\"filmography\":[\"Apocalypto\",\"Beatdown\",\"Wind Walkers\"]}]}";
 
         final ObjectMapper mapper = new ObjectMapper();
-        final DateFormat df = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss");
+        final DateFormat df = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ssXXX");
         mapper.setDateFormat(df);
 
         final Movie movie = mapper.readValue(jsonInput, Movie.class);
 
-        final String expectedOutput = "Movie [imdbId=tt0472043, director=Mel Gibson, actors=[ActorJackson [imdbId=nm2199632, dateOfBirth=Tue Sep 21 09:00:00 GMT 1982, filmography=[Apocalypto, Beatdown, Wind Walkers]]]]";
+        final String expectedOutput = "Movie [imdbId=tt0472043, director=Mel Gibson, actors=[ActorJackson [imdbId=nm2199632, dateOfBirth=Tue Sep 21 11:00:00 GMT 1982, filmography=[Apocalypto, Beatdown, Wind Walkers]]]]";
         Assert.assertEquals(movie.toString(), expectedOutput);
     }
 
diff --git a/jackson/src/test/java/org/baeldung/jackson/serialization/JacksonSerializeTest.java b/jackson/src/test/java/org/baeldung/jackson/serialization/JacksonSerializeTest.java
index fcf19fcfad..6d9e378025 100644
--- a/jackson/src/test/java/org/baeldung/jackson/serialization/JacksonSerializeTest.java
+++ b/jackson/src/test/java/org/baeldung/jackson/serialization/JacksonSerializeTest.java
@@ -4,6 +4,7 @@ import java.io.IOException;
 import java.text.ParseException;
 import java.text.SimpleDateFormat;
 import java.util.Arrays;
+import java.util.TimeZone;
 
 import org.baeldung.jackson.entities.ActorJackson;
 import org.baeldung.jackson.entities.Movie;
@@ -23,6 +24,7 @@ public class JacksonSerializeTest {
     public void whenSimpleSerialize_thenCorrect() throws JsonProcessingException, ParseException {
 
         final SimpleDateFormat sdf = new SimpleDateFormat("dd-MM-yyyy");
+        sdf.setTimeZone(TimeZone.getTimeZone("GMT"));
 
         final ActorJackson rudyYoungblood = new ActorJackson("nm2199632", sdf.parse("21-09-1982"), Arrays.asList("Apocalypto", "Beatdown", "Wind Walkers"));
         final Movie movie = new Movie("tt0472043", "Mel Gibson", Arrays.asList(rudyYoungblood));
@@ -30,7 +32,7 @@ public class JacksonSerializeTest {
         final ObjectMapper mapper = new ObjectMapper();
         final String jsonResult = mapper.writeValueAsString(movie);
 
-        final String expectedOutput = "{\"imdbId\":\"tt0472043\",\"director\":\"Mel Gibson\",\"actors\":[{\"imdbId\":\"nm2199632\",\"dateOfBirth\":401403600000,\"filmography\":[\"Apocalypto\",\"Beatdown\",\"Wind Walkers\"]}]}";
+        final String expectedOutput = "{\"imdbId\":\"tt0472043\",\"director\":\"Mel Gibson\",\"actors\":[{\"imdbId\":\"nm2199632\",\"dateOfBirth\":401414400000,\"filmography\":[\"Apocalypto\",\"Beatdown\",\"Wind Walkers\"]}]}";
         Assert.assertEquals(jsonResult, expectedOutput);
     }