diff --git a/CHANGELOG.md b/CHANGELOG.md
index 10a4660..c5e13f7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,7 +1,8 @@
 # Changelog
 
-## Next
+## 1.9.1 - 2023 Mar 30
 - Improve formatting of numbers
+- Remove unnecessary dependencies (@jqnatividad)
 
 ## 1.9.0 - 2022 Dec 30
 - Add `marathon` unit
diff --git a/Cargo.lock b/Cargo.lock
index c88891a..7c6577a 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -25,7 +25,7 @@ checksum = "50d30906286121d95be3d479533b458f87493b30a4b5f79a607db8f5d11aa91f"
 
 [[package]]
 name = "cpc"
-version = "1.9.0"
+version = "1.9.1"
 dependencies = [
  "decimal",
  "regex",
diff --git a/Cargo.toml b/Cargo.toml
index 3fd1663..6c464c6 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "cpc"
-version = "1.9.0"
+version = "1.9.1"
 description = "evaluates math expressions, with support for units and conversion between units"
 authors = ["Kasper Henningsen"]
 edition = "2021"