diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1688f4b..48ee112 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,11 @@ The format is based on [Keep a
 Changelog](http://keepachangelog.com/en/1.0.0/) and this project
 adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
+## [Unreleased]
+
+### Changed
+* Changed thermometer indicator border radius from 40px to 5px.
+
 ## [0.2.2] - 2019-10-04
 
 ### Fixed
diff --git a/package.json b/package.json
index 3068873..ca089aa 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "dash-daq",
-  "version": "0.2.2",
+  "version": "0.2.3-rc1",
   "engines": {
     "node": ">=8"
   },
diff --git a/src/styled/Tank.styled.js b/src/styled/Tank.styled.js
index 9a17c4f..c82dcc1 100644
--- a/src/styled/Tank.styled.js
+++ b/src/styled/Tank.styled.js
@@ -33,7 +33,7 @@ export const TankFill = styled.div`
   width: 100%;
   height: ${({ height }) => height || 0};
 
-  border-radius: ${({ thermometer }) => (thermometer ? '40px' : '0')};
+  border-radius: ${({ thermometer }) => (thermometer ? '5px' : '0')};
 
   ${({ theme }) => (theme.dark ? darkTankFill : lightTankFill)};
 `;