diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4affba0..f3c3928 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,6 @@
 # Changes between versions
 
-## Unreleased
+## 0.5.1 (2017-12-28)
 
 * Fix Symfony 3.4 / 4.0 compatibility with DataCollector