diff --git a/requests/updateProject.http b/requests/updateProject.http
index d1ae70c..dfa5f0b 100644
--- a/requests/updateProject.http
+++ b/requests/updateProject.http
@@ -1,3 +1,15 @@
 ### GET request to example server
 PUT http://localhost:8080/projects/1
-Authorization: Bearer {{auth_token}}
\ No newline at end of file
+Authorization: Bearer {{auth_token}}
+Content-Type: application/json
+
+{
+  "name": "newName",
+  "leading_employee": 2,
+  "employees": [],
+  "contractor": 9,
+  "contractor_name": "New Contractor name",
+  "comment": "new goal of project",
+  "start_date": "01.01.2010",
+  "planned_end_date": "01.01.2021"
+}
\ No newline at end of file
diff --git a/src/main/java/de/szut/lf8_starter/exceptionHandling/GlobalExceptionHandler.java b/src/main/java/de/szut/lf8_starter/exceptionHandling/GlobalExceptionHandler.java
index 8ee2aaf..4c93a21 100644
--- a/src/main/java/de/szut/lf8_starter/exceptionHandling/GlobalExceptionHandler.java
+++ b/src/main/java/de/szut/lf8_starter/exceptionHandling/GlobalExceptionHandler.java
@@ -6,6 +6,7 @@ import io.swagger.v3.oas.annotations.responses.ApiResponses;
 import jakarta.validation.ConstraintViolationException;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
+import org.springframework.http.converter.HttpMessageNotReadableException;
 import org.springframework.web.bind.MethodArgumentNotValidException;
 import org.springframework.web.bind.annotation.ControllerAdvice;
 import org.springframework.web.bind.annotation.ExceptionHandler;
@@ -40,6 +41,13 @@ public class GlobalExceptionHandler {
         return new ResponseEntity<>(errorDetails, HttpStatus.BAD_REQUEST);
     }
 
+    @ExceptionHandler(HttpMessageNotReadableException.class)
+    public ResponseEntity<ErrorDetails> handleHttpMessageNotReadableException(HttpMessageNotReadableException ex, WebRequest request) {
+        ErrorDetails errorDetails = new ErrorDetails(new Date(), ex.getMessage(), request.getDescription(false));
+
+        return new ResponseEntity<>(errorDetails, HttpStatus.BAD_REQUEST);
+    }
+
     @ExceptionHandler(ConstraintViolationException.class)
     public ResponseEntity<ErrorDetails> handleConstraintViolationException(ConstraintViolationException ex, WebRequest request) {
         String errorMessage = ex.getConstraintViolations().stream().findFirst().get().getMessage();
diff --git a/src/test/java/de/szut/lf8_starter/integration/project/UpdateProjectActionTest.java b/src/test/java/de/szut/lf8_starter/integration/project/UpdateProjectActionTest.java
index 5fb4c02..594745e 100644
--- a/src/test/java/de/szut/lf8_starter/integration/project/UpdateProjectActionTest.java
+++ b/src/test/java/de/szut/lf8_starter/integration/project/UpdateProjectActionTest.java
@@ -16,8 +16,6 @@ import java.util.List;
 
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.hamcrest.Matchers.is;
-import static org.hamcrest.collection.IsCollectionWithSize.hasSize;
-import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
 import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.put;
 import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.jsonPath;
 import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;