diff --git a/cocluto/version.py b/cocluto/version.py
index b9a98ea..d4d3051 100644
--- a/cocluto/version.py
+++ b/cocluto/version.py
@@ -1,4 +1,4 @@
-__version__ = '1.0.19'
+__version__ = '1.0.20'
 
 
 class Version(object):
diff --git a/pyproject.toml b/pyproject.toml
index 99711cb..d19265d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [build-system]
 requires = ["setuptools"]
-build-backup = "setuptools.build_meta"
+build-backend = "setuptools.build_meta"
 
 [project]
 name = "cocluto"