diff --git a/CHANGELOG.md b/CHANGELOG.md
index 166b4e1..1d1021c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## v0.1.8
+
+* Changes
+  * Support `$TZDIR` and use it in preference to `$TZPATH` for overriding the
+    zoneinfo directory. This is the standard environment variable. `$TZPATH` is
+    kept for backwards compatibility. Thank to @danderson for reporting.
+
 ## v0.1.7
 
 * Improvements
diff --git a/mix.exs b/mix.exs
index 4c3534d..d43d71e 100644
--- a/mix.exs
+++ b/mix.exs
@@ -1,7 +1,7 @@
 defmodule Zoneinfo.MixProject do
   use Mix.Project
 
-  @version "0.1.7"
+  @version "0.1.8"
   @source_url "https://github.com/smartrent/zoneinfo"
 
   def project do