diff --git a/CHANGELOG.md b/CHANGELOG.md
index 459a24f..93b5f1a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,10 @@
 CHANGELOG
 =========
 
+v1.1.0
+------
+* Use HTTP compliant timestamp format string. (See https://github.com/tilezen/tapalcatl/issues/18)
+
 v1.0.0
 ------
-* Initial stable release
\ No newline at end of file
+* Initial stable release
diff --git a/VERSION b/VERSION
index afaf360..1cc5f65 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.0.0
\ No newline at end of file
+1.1.0
\ No newline at end of file