diff --git a/CHANGELOG.md b/CHANGELOG.md
index e9b29c3..98678c8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 <!--next-version-placeholder-->
 
+## v0.9.0 (2023-05-01)
+### Feature
+* Fix rounding ([`3198e9b`](https://github.com/iandday/whichPlates/commit/3198e9b88b3b59979556dc6088ec9f539b4041cd))
+
 ## v0.8.0 (2023-04-30)
 ### Feature
 * Fixed math issue ([`364cb3c`](https://github.com/iandday/whichPlates/commit/364cb3ccdd5be0ba9837bf1ccb749aff79d9a2e9))
diff --git a/pyproject.toml b/pyproject.toml
index a8b0601..0e13b32 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "which_plates"
-version = "0.8.0"
+version = "0.9.0"
 description = ""
 authors = ["Ian Day <ian@ianday.me>"]
 readme = "README.md"
diff --git a/src/which_plates/__init__.py b/src/which_plates/__init__.py
index 814f7bb..a54c5f3 100644
--- a/src/which_plates/__init__.py
+++ b/src/which_plates/__init__.py
@@ -8,4 +8,4 @@
     "calc_plates",
     "main",
 ]
-__version__ = "0.8.0"
+__version__ = "0.9.0"