diff --git a/CHANGELOG.md b/CHANGELOG.md
index ab9e6c783..dca3a03ae 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,4 @@
-## 1.6.4 (unreleased)
+## 1.6.4 (September 2, 2014)
 
 BACKWARDS INCOMPATIBILITIES:
 
diff --git a/version.txt b/version.txt
index a731447da..9edc58bb1 100644
--- a/version.txt
+++ b/version.txt
@@ -1 +1 @@
-1.6.4.dev
+1.6.4