diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0cb2e5a..483f151 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Changelog
 
+## v1.4.0 (2020-07-27)
+
+### Features
+
+ * Decode application/x-npz content type
+
 ## v1.3.2.post1 (2020-06-29)
 
 ### Testing and Release Infrastructure
diff --git a/VERSION b/VERSION
index 35d9799..88c5fb8 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.3.3.dev0
+1.4.0