diff --git a/HISTORY.md b/HISTORY.md
index 5f46d15..262046c 100644
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -1,5 +1,9 @@
 # History
 
+## 2020-07-13, v0.8.6
+- Standardized on US customary fluid volumes
+- Corrected values for `teaspoon` and `fluidounce`
+
 ## 2019-11-23, v0.8.5
 - `compare` now handles NaNs consistently
 
diff --git a/README.md b/README.md
index 0ae8288..6603f82 100644
--- a/README.md
+++ b/README.md
@@ -977,6 +977,7 @@ Many thanks to Jos de Jong (@josdejong), the original author of `Unit.js`, who s
 ### Contributors
 
 - Harry Sarson (https://github.com/harrysarson)
+- Nick Ewing (https://github.com/nickewing)
 
 ## License
 
diff --git a/package.json b/package.json
index 0df92d6..c36e7d9 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "unitmath",
-  "version": "0.8.5",
+  "version": "0.8.6",
   "description": "JavaScript library for unit conversion and arithmetic",
   "main": "index.js",
   "module": "src/Unit.js",