diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3b498c5..fa3bbf6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,19 @@
 # CHANGELOG
 
+## v1.1.6 (2024-08-30)
+
+### Fix
+
+* fix: validation last update timestamp type is int or float. ([`64c65fa`](https://github.com/EBI-Metabolights/metabolights-utils/commit/64c65faee24fa6b72d0870707d1bce893fb5ac45))
+
+### Unknown
+
+* Merge pull request #2 from nilshoffmann/master
+
+Fixed type of last_update_timestamp in validation to float. ([`fe2aba1`](https://github.com/EBI-Metabolights/metabolights-utils/commit/fe2aba188f7401566bffc72f7f9c2261f8eb93b5))
+
+* Fixed type of last_update_timestamp in validation to float. ([`d1fe8f5`](https://github.com/EBI-Metabolights/metabolights-utils/commit/d1fe8f5f09999f39b85a0cd515f3c717fec6f07f))
+
 ## v1.1.5 (2024-07-22)
 
 ### Fix
diff --git a/metabolights_utils/__init__.py b/metabolights_utils/__init__.py
index 98fbd0b..bad8ea6 100644
--- a/metabolights_utils/__init__.py
+++ b/metabolights_utils/__init__.py
@@ -158,7 +158,7 @@
 )
 from metabolights_utils.utils.search_utils import MetabolightsSearchUtils
 
-__VERSION__ = "1.1.5"
+__VERSION__ = "1.1.6"
 
 __all__ = [
     "Assay",
diff --git a/pyproject.toml b/pyproject.toml
index b9cad46..798dd12 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "metabolights-utils"
-version = "1.1.5"
+version = "1.1.6"
 description = "MetaboLights open metabolomics data repository utility tools and API."
 authors = ["MetaboLights Team <metabolights-dev@ebi.ac.uk>"]
 readme = "README.md"