diff --git a/docs/docs/changelog/changelog.md b/docs/docs/changelog/changelog.md
index e3efcf48bd..aad25cfb08 100644
--- a/docs/docs/changelog/changelog.md
+++ b/docs/docs/changelog/changelog.md
@@ -1,5 +1,22 @@
 # Changelog
 
+## [8.18.1](https://github.com/equinor/ecalc/compare/v8.18.0...v8.18.1) (2024-06-28)
+
+
+### Features
+
+* validate model references and types ([e17259f](https://github.com/equinor/ecalc/commit/e17259fc283dbbf8d9f11350cf04ab1de136190d))
+
+
+### Documentation
+
+* wrong units venting emitters docs ([#537](https://github.com/equinor/ecalc/issues/537)) ([bca7ffe](https://github.com/equinor/ecalc/commit/bca7ffe667cc42f627d5ea5aa3abc1d123d73dc0))
+
+
+### Code Refactoring
+
+* add ModelReference type ([20be473](https://github.com/equinor/ecalc/commit/20be473a75f8392221961fd5d0b8c442eb8d887e))
+
 ## [8.18.0](https://github.com/equinor/ecalc/compare/v8.17.0...v8.18.0) (2024-06-25)
 
 
diff --git a/pyproject.toml b/pyproject.toml
index 680cab71af..d7ba2acf78 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,7 +1,7 @@
 [tool.poetry]
 name = "libecalc"
 # DO_NOT_EDIT: Version number automatically changed in CICD
-version = "8.18.0"  # x-release-please-version
+version = "8.18.1"  # x-release-please-version
 # END_DO_NOT_EDIT
 description = "eCalc™ is a software tool for calculation of energy demand and greenhouse gas (GHG) emissions from oil and gas production and processing."
 keywords = ["energy", "emission", "scientific", "engineering"]
diff --git a/src/libecalc/version.py b/src/libecalc/version.py
index eab57312d5..bbd4d43148 100644
--- a/src/libecalc/version.py
+++ b/src/libecalc/version.py
@@ -1,7 +1,7 @@
 from libecalc.common.version import Version
 
 # DO NOT EDIT - replaced in CI with release please
-__version__ = "8.18.0"  # x-release-please-version
+__version__ = "8.18.1"  # x-release-please-version
 # END DO NOT EDIT