diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5f865f11..a1e5aedf 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,13 @@
 Release Notes
 ---
 
+## [0.4.0](https://github.com/substrait-io/substrait-java/compare/v0.3.0...v0.4.0) (2023-01-29)
+
+
+### Features
+
+* registered `upper` & `lower` in function mapping ([#103](https://github.com/substrait-io/substrait-java/issues/103)) ([c4f94db](https://github.com/substrait-io/substrait-java/commit/c4f94db24ba89ae653017c0f94bb0cc6a8fe9a96))
+
 ## [0.3.0](https://github.com/substrait-io/substrait-java/compare/v0.2.0...v0.3.0) (2023-01-19)
 
 
diff --git a/gradle.properties b/gradle.properties
index 8e96104e..4f00a22a 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -20,7 +20,7 @@ slf4j.version=1.7.25
 jackson.version=2.12.4
 
 #version that is going to be updated automatically by releases
-version = 0.3.0
+version = 0.4.0
 
 #signing
 SIGNING_KEY_ID = 193EAE47