diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6750fd2c07e..ac78a9f4755 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,13 @@
 # Change Log
 All notable changes to this project will be documented in this file.
 
+## [TBD]
+
+### Fixed
+
+- Ignore uppercase and lowercase sorting an array in framework. ([#814](https://github.com/wazuh/wazuh/pull/814))
+
+
 ## [v3.5.0]
 
 ### Added
diff --git a/framework/wazuh/utils.py b/framework/wazuh/utils.py
index a5a74fea884..5855bf4ebb7 100755
--- a/framework/wazuh/utils.py
+++ b/framework/wazuh/utils.py
@@ -17,6 +17,10 @@
 from itertools import groupby, chain
 from xml.etree.ElementTree import fromstring
 from operator import itemgetter
+import sys
+# Python 2/3 compability
+if sys.version_info[0] == 3:
+    unicode = str
 
 try:
     from subprocess import check_output
@@ -98,7 +102,7 @@ def cut_array(array, offset, limit):
     elif limit == 0:
         raise WazuhException(1406)
 
-    if not array or limit == None:
+    if not array or limit is None:
         return array
 
     offset = int(offset)
@@ -125,8 +129,8 @@ def sort_array(array, sort_by=None, order='asc', allowed_sort_fields=None):
     def check_sort_fields(allowed_sort_fields, sort_by):
         # Check if every element in sort['fields'] is in allowed_sort_fields
         if not sort_by.issubset(allowed_sort_fields):
-            uncorrect_fields = map(lambda x: str(x), sort_by - allowed_sort_fields)
-            raise WazuhException(1403, 'Allowed sort fields: {0}. Fields: {1}'.format(list(allowed_sort_fields), uncorrect_fields))
+            incorrect_fields = ', '.join(sort_by - allowed_sort_fields)
+            raise WazuhException(1403, 'Allowed sort fields: {0}. Fields: {1}'.format(', '.join(allowed_sort_fields), incorrect_fields))
 
     if not array:
         return array
@@ -145,9 +149,13 @@ def check_sort_fields(allowed_sort_fields, sort_by):
         if type(array[0]) is dict:
             check_sort_fields(set(array[0].keys()), set(sort_by))
 
-            return sorted(array, key=lambda o: tuple(o.get(a) for a in sort_by), reverse=order_desc)
+            return sorted(array,
+                          key=lambda o: tuple(o.get(a).lower() if type(o.get(a)) in (str,unicode) else o.get(a) for a in sort_by),
+                          reverse=order_desc)
         else:
-            return sorted(array, key=lambda o: tuple(getattr(o, a) for a in sort_by), reverse=order_desc)
+            return sorted(array,
+                          key=lambda o: tuple(getattr(o, a).lower() if type(getattr(o, a)) in (str,unicode) else getattr(o, a) for a in sort_by),
+                          reverse=order_desc)
     else:
         if type(array) is set or (type(array[0]) is not dict and 'class \'wazuh' not in str(type(array[0]))):
             return sorted(array, reverse=order_desc)
@@ -217,6 +225,7 @@ def search_array(array, text, negation=False, fields=None):
 
     return found
 
+
 _filemode_table = (
     ((stat.S_IFLNK, "l"),
      (stat.S_IFREG, "-"),
@@ -367,6 +376,7 @@ def md5(fname):
             hash_md5.update(chunk)
     return hash_md5.hexdigest()
 
+
 def get_fields_to_nest(fields, force_fields=[], split_character="_"):
     nest = {k:set(filter(lambda x: x != k, chain.from_iterable(g)))
              for k,g in groupby(map(lambda x: x.split(split_character), sorted(fields)),