diff --git a/src/main/java/org/apache/commons/lang3/builder/HashCodeBuilder.java b/src/main/java/org/apache/commons/lang3/builder/HashCodeBuilder.java
index 1c2d722f1..a1569dab6 100644
--- a/src/main/java/org/apache/commons/lang3/builder/HashCodeBuilder.java
+++ b/src/main/java/org/apache/commons/lang3/builder/HashCodeBuilder.java
@@ -20,7 +20,9 @@ package org.apache.commons.lang3.builder;
 import java.lang.reflect.AccessibleObject;
 import java.lang.reflect.Field;
 import java.lang.reflect.Modifier;
+import java.util.Arrays;
 import java.util.Collection;
+import java.util.Comparator;
 import java.util.HashSet;
 import java.util.Set;
 
@@ -189,6 +191,7 @@ public class HashCodeBuilder implements Builder<Integer> {
         try {
             register(object);
             final Field[] fields = clazz.getDeclaredFields();
+            Arrays.sort(fields, Comparator.comparing(Field::getName));
             AccessibleObject.setAccessible(fields, true);
             for (final Field field : fields) {
                 if (!ArrayUtils.contains(excludeFields, field.getName())
diff --git a/src/test/java/org/apache/commons/lang3/builder/HashCodeBuilderTest.java b/src/test/java/org/apache/commons/lang3/builder/HashCodeBuilderTest.java
index 148c53388..598f8998f 100644
--- a/src/test/java/org/apache/commons/lang3/builder/HashCodeBuilderTest.java
+++ b/src/test/java/org/apache/commons/lang3/builder/HashCodeBuilderTest.java
@@ -490,11 +490,11 @@ public class HashCodeBuilderTest {
     public void testReflectionHashCodeExcludeFields() {
         final TestObjectWithMultipleFields x = new TestObjectWithMultipleFields(1, 2, 3);
 
-        assertEquals(((17 * 37 + 1) * 37 + 2) * 37 + 3, HashCodeBuilder.reflectionHashCode(x));
+        assertEquals(((17 * 37 + 1) * 37 + 3) * 37 + 2, HashCodeBuilder.reflectionHashCode(x));
 
-        assertEquals(((17 * 37 + 1) * 37 + 2) * 37 + 3, HashCodeBuilder.reflectionHashCode(x, (String[]) null));
-        assertEquals(((17 * 37 + 1) * 37 + 2) * 37 + 3, HashCodeBuilder.reflectionHashCode(x));
-        assertEquals(((17 * 37 + 1) * 37 + 2) * 37 + 3, HashCodeBuilder.reflectionHashCode(x, "xxx"));
+        assertEquals(((17 * 37 + 1) * 37 + 3) * 37 + 2, HashCodeBuilder.reflectionHashCode(x, (String[]) null));
+        assertEquals(((17 * 37 + 1) * 37 + 3) * 37 + 2, HashCodeBuilder.reflectionHashCode(x));
+        assertEquals(((17 * 37 + 1) * 37 + 3) * 37 + 2, HashCodeBuilder.reflectionHashCode(x, "xxx"));
 
         assertEquals((17 * 37 + 1) * 37 + 3, HashCodeBuilder.reflectionHashCode(x, "two"));
         assertEquals((17 * 37 + 1) * 37 + 2, HashCodeBuilder.reflectionHashCode(x, "three"));