diff --git a/HISTORY.rst b/HISTORY.rst
index d97d5f7..2e49adf 100644
--- a/HISTORY.rst
+++ b/HISTORY.rst
@@ -2,7 +2,7 @@
 History
 =======
 
-1.0.0 (unreleased)
+1.0.0 (2024-12-25)
 ------------------
 
 - **XML serialization/deserialization support has been added**.
diff --git a/setup.py b/setup.py
index f214e83..9c0c26a 100644
--- a/setup.py
+++ b/setup.py
@@ -101,7 +101,7 @@
         "dev": (test_requirements + development_requirements),
     },
     url="https://github.com/nazrulworld/fhir-core",
-    version="1.0.0.dev0",
+    version="1.0.0",
     zip_safe=False,
     python_requires=">=3.8",
     project_urls={