diff --git a/simple-algorithms/biggest-price/build.gradle b/simple-algorithms/biggest-price/build.gradle
index 5584480..9f5b988 100644
--- a/simple-algorithms/biggest-price/build.gradle
+++ b/simple-algorithms/biggest-price/build.gradle
@@ -2,7 +2,7 @@ plugins {
     id 'java'
 }
 
-def junitJupiterVersion = '5.7.0'
+def junitJupiterVersion = '5.10.2'
 
 group 'com.josdem.kata'
 version '1.0-SNAPSHOT'
diff --git a/simple-algorithms/biggest-price/gradle/wrapper/gradle-wrapper.properties b/simple-algorithms/biggest-price/gradle/wrapper/gradle-wrapper.properties
index aa991fc..a595206 100644
--- a/simple-algorithms/biggest-price/gradle/wrapper/gradle-wrapper.properties
+++ b/simple-algorithms/biggest-price/gradle/wrapper/gradle-wrapper.properties
@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.4.2-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.5-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
diff --git a/simple-algorithms/biggest-price/src/main/java/com/josdem/kata/BiggestNumberFinder.java b/simple-algorithms/biggest-price/src/main/java/com/josdem/kata/BiggestNumberFinder.java
index 2586a8a..e2f3148 100644
--- a/simple-algorithms/biggest-price/src/main/java/com/josdem/kata/BiggestNumberFinder.java
+++ b/simple-algorithms/biggest-price/src/main/java/com/josdem/kata/BiggestNumberFinder.java
@@ -1,23 +1,12 @@
 package com.josdem.kata;
 
-/*
-Messages with random data are coming! But we just care about prices!
-Your task is to implement a function which removes all non numeric data and return just the biggest price
-messages = ["hi", "2", "@#$%", "32"]
-result = 32
-*/
-
 import java.util.List;
+import java.util.Optional;
 
 public class BiggestNumberFinder {
-
-  private String regex = "-?[0-9]+.?[0-9]+";
-
-  public double find(List<String> numbers) {
-    return numbers.stream()
-        .filter(it -> it.matches(regex))
-        .map(it -> Double.parseDouble(it))
-        .max(Double::compare)
-        .get();
-  }
+    private static final String REGEX = "-?[0-9]+.?[0-9]+";
+    public double find(List<String> numbers) {
+        Optional<Double> result = numbers.stream().filter(it -> it.matches(REGEX)).map(Double::parseDouble).max(Double::compare);
+        return result.orElseThrow(RuntimeException::new);
+    }
 }
diff --git a/simple-algorithms/biggest-price/src/test/java/com/josdem/kata/BiggestNumberFinderTest.java b/simple-algorithms/biggest-price/src/test/java/com/josdem/kata/BiggestNumberFinderTest.java
index 5e89ace..faea302 100644
--- a/simple-algorithms/biggest-price/src/test/java/com/josdem/kata/BiggestNumberFinderTest.java
+++ b/simple-algorithms/biggest-price/src/test/java/com/josdem/kata/BiggestNumberFinderTest.java
@@ -6,9 +6,16 @@
 import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Test;
 
+/*
+Messages with random data are coming! But we just care about prices!
+Your task is to implement a function which removes all non-numeric data and return just the biggest price
+messages = ["hi", "2", "@#$%", "32"]
+result = 32
+*/
+
 class BiggestNumberFinderTest {
 
-  private BiggestNumberFinder biggestNumberFinder = new BiggestNumberFinder();
+  private final BiggestNumberFinder biggestNumberFinder = new BiggestNumberFinder();
 
   @Test
   @DisplayName("Find biggest")