diff --git a/CHANGELOG.md b/CHANGELOG.md
index e71ba2a..a73b86b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,7 +10,7 @@ packmol changelog
 [badge-fix]: https://img.shields.io/badge/Fix-purple.svg
 [badge-info]: https://img.shields.io/badge/Info-gray.svg
 
-Version 21.2.3-DEV
+Version 21.2.3
 --------------
 - ![INFO][badge-info] Update versions of CellListMap.jl and PDBTools.jl packages in test infraestructure.
 
diff --git a/fpm.toml b/fpm.toml
index c01f6ce..eb636db 100644
--- a/fpm.toml
+++ b/fpm.toml
@@ -1,5 +1,5 @@
 name = "packmol"
-version = "21.2.2"
+version = "21.2.3"
 license = "MIT"
 author = "Leandro Martinez, Ernesto Birgin, Jose Mario Martinez"
 maintainer = "Leandro Martinez"
diff --git a/pyproject.toml b/pyproject.toml
index b6cc83f..25eb62b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "packmol"
-version = "21.2.2"
+version = "21.2.3"
 description = "Packmol - Creates Initial Configurations for Molecular Dynamics Simulations"
 readme = "README.md"
 requires-python = ">=3.10"
diff --git a/src/title.f90 b/src/title.f90
index 5a51c9c..2fb602a 100644
--- a/src/title.f90
+++ b/src/title.f90
@@ -13,7 +13,7 @@ subroutine title()
     write(*,"(' PACKMOL - Packing optimization for the automated generation of', /&
              &' starting configurations for molecular dynamics simulations.', /&
              &' ',/&
-             &t61,' Version 21.2.2 ')")
+             &t61,' Version 21.2.3 ')")
     write(*,hash3_line)
 
 end subroutine title