diff --git a/CHANGELOG.md b/CHANGELOG.md
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--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,12 @@
+# [0.4.0](https://gitlab.com/openstapps/logger/compare/v0.3.1...v0.4.0) (2019-07-12)
+
+
+### Features
+
+* add transformations ([ddbe00d](https://gitlab.com/openstapps/logger/commit/ddbe00d)), closes [#9](https://gitlab.com/openstapps/logger/issues/9)
+
+
+
 ## [0.3.1](https://gitlab.com/openstapps/logger/compare/v0.3.0...v0.3.1) (2019-06-05)