diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 37d8cbe1..cea8c779 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -2,8 +2,8 @@
 CHANGELOG
 =========
 
-1.0.0 (UNRELEASED)
-================
+1.0.0 (2025-02-07)
+==================
 
 * We have decided internally to revert the versioning schema back to SemVer, starting at ``1.0.0``, in order to improve better backward and forward compatibility support for plugins.
 * Fix bug related to Probabilistic History Matching result reader. The shape of result was wrong.
diff --git a/src/alfasim_sdk/_internal/version.py b/src/alfasim_sdk/_internal/version.py
index 07055a3a..5becc17c 100644
--- a/src/alfasim_sdk/_internal/version.py
+++ b/src/alfasim_sdk/_internal/version.py
@@ -1 +1 @@
-__version__ = "1.0.0.dev"
+__version__ = "1.0.0"