diff --git a/CHANGELOG.md b/CHANGELOG.md
index a123ef9ed..835c6b594 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,15 @@
+# v9.1.0 (17 July 2023)
+
+### Feature
+* **jexl:** Add flatten transform ([`42144cb`](https://github.com/projectcaluma/caluma/commit/42144cb64ec43baa52db82cf1304d700f6e6673e))
+
+### Fix
+* Also catch ValueError and ZeroDivision errors on early jexl evaluation ([`0fe96ea`](https://github.com/projectcaluma/caluma/commit/0fe96ea9268781b2ab604c2e6398f27baf407f8b))
+
+### Documentation
+* **jexl:** Update question jexl docstring ([`cdf1e73`](https://github.com/projectcaluma/caluma/commit/cdf1e7369f08eb7de8af9ec821b7331276a60ab9))
+
+
 # v9.0.0 (9 June 2023)
 
 ### Feature
diff --git a/pyproject.toml b/pyproject.toml
index 83b68b5e8..82fa0e120 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "caluma"
-version = "9.0.0"
+version = "9.1.0"
 description = "Caluma Service providing GraphQL API"
 homepage = "https://caluma.io"
 repository = "https://github.com/projectcaluma/caluma"