diff --git a/pydbsmgr/utils/tools.py b/pydbsmgr/utils/tools.py
index 52a22bb..40c5710 100644
--- a/pydbsmgr/utils/tools.py
+++ b/pydbsmgr/utils/tools.py
@@ -1,5 +1,6 @@
 import glob
 import os
+import re
 from typing import List
 
 import numpy as np
@@ -25,6 +26,8 @@ def columns_check(df: DataFrame) -> DataFrame:
         res = any(chr.isdigit() for chr in col)
         if res:
             col = "[" + col + "]"
+        else:
+            col = re.sub("[^a-zA-Z0-9]", "_", col)
         new_cols.append(col)
 
     df.columns = new_cols
diff --git a/requirements.txt b/requirements.txt
index 4dae4fd..b546bba 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -11,4 +11,5 @@ python-dotenv==1.0.0
 openpyxl==3.1.2
 pyarrow
 fastparquet
-loguru
\ No newline at end of file
+loguru
+psutil
\ No newline at end of file
diff --git a/setup.py b/setup.py
index 5f87bcb..55e454e 100644
--- a/setup.py
+++ b/setup.py
@@ -5,7 +5,7 @@
 
 setuptools.setup(
     name="pydbsmgr",
-    version="0.4.2",
+    version="0.4.3",
     author="J. A. Moreno-Guerra",
     author_email="jzs.gm27@gmail.com",
     description="Testing installation of Package",