diff --git a/CHANGELOG.md b/CHANGELOG.md
index d25d8b4..714057f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,14 @@
+## v1.13.1 (2024-07-11)
+
+### Fix
+
+- added optimal acceptance time recording to results
+- remove watermark dependencies
+
+### Refactor
+
+- refactored run.py
+
 ## v1.13.0 (2024-06-19)
 
 ### Feat
diff --git a/pycmtensor/__init__.py b/pycmtensor/__init__.py
index 58ed521..87ace6a 100644
--- a/pycmtensor/__init__.py
+++ b/pycmtensor/__init__.py
@@ -22,7 +22,7 @@
 """
 
 __author__ = """Melvin Wong"""
-__version__ = "1.13.0"
+__version__ = "1.13.1"
 
 import importlib
 
diff --git a/pyproject.toml b/pyproject.toml
index 31a6d41..34084ff 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "poetry.core.masonry.api"
 
 [tool.poetry]
 name = "pycmtensor"
-version = "1.13.0"
+version = "1.13.1"
 description = "A robust and efficient Python package leveraging tensor computations for advanced discrete choice modelling."
 authors = ["Melvin Wong"]
 license = "MIT"
@@ -89,7 +89,7 @@ exclude = '''
 
 [tool.commitizen]
 name = "cz_conventional_commits"
-version = "1.13.0"
+version = "1.13.1"
 tag_format = "v$version"
 bump_message = "Bump version: $current_version → $new_version"
 version_files = [