diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5fca45d..b047842 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # CHANGELOG
 
+## Version 1.2.1 - 2024-08-21
+
+### Trivial changes
+
+- Update pydantic version
+
+
 ## Version 1.2.0 - 2024-01-24
 
 ### Trivial changes
@@ -48,4 +55,4 @@
 
 ## Version 0.1.0 - 2021-04-22 
 
-- First version
\ No newline at end of file
+- First version
diff --git a/docs/conf.py b/docs/conf.py
index 3d412b6..2632ed4 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -4,9 +4,9 @@
 sys.path.insert(0, os.path.abspath("."))
 
 project = "route-distances"
-copyright = "2021-2022, Molecular AI group"
+copyright = "2021-2024, Molecular AI group"
 author = "Molecular AI group"
-release = "1.2.0"
+release = "1.2.1"
 
 extensions = [
     "sphinx.ext.autodoc",
diff --git a/pyproject.toml b/pyproject.toml
index 89d84db..59a03d2 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "route-distances"
-version = "1.2.0"
+version = "1.2.1"
 description = "Models for calculating distances between synthesis routes"
 authors = ["Genheden, Samuel <samuel.genheden@astrazeneca.com>"]
 license = "MIT"