diff --git a/CHANGELOG.md b/CHANGELOG.md
index 29d2242f..1f7e1f37 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,16 @@
+# [0.4.0](https://github.com/input-output-hk/atala-prism-mediator/compare/prism-mediator-v0.3.1...prism-mediator-v0.4.0) (2023-07-13)
+
+
+### Bug Fixes
+
+* Id/hash of the message must be deterministic ([#53](https://github.com/input-output-hk/atala-prism-mediator/issues/53)) ([d122b99](https://github.com/input-output-hk/atala-prism-mediator/commit/d122b993d54b3a8e557374709b9d8628c38ee74e))
+
+
+### Features
+
+* Better error handling for connection refused ([#47](https://github.com/input-output-hk/atala-prism-mediator/issues/47)) ([429940e](https://github.com/input-output-hk/atala-prism-mediator/commit/429940e2ef6807017c4e4ef156432e843c5cdccc))
+* Not send response errors to the caller ([#50](https://github.com/input-output-hk/atala-prism-mediator/issues/50)) ([60ee3ef](https://github.com/input-output-hk/atala-prism-mediator/commit/60ee3ef8e4342fb5fa69501502abdd739c55e22a))
+
 ## [0.3.1](https://github.com/input-output-hk/atala-prism-mediator/compare/prism-mediator-v0.3.0...prism-mediator-v0.3.1) (2023-07-10)
 
 
diff --git a/package-lock.json b/package-lock.json
index af20fc4b..05230ac7 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
     "name": "atala-prism-mediator",
-    "version": "0.3.1",
+    "version": "0.4.0",
     "lockfileVersion": 3,
     "requires": true,
     "packages": {
         "": {
             "name": "atala-prism-mediator",
-            "version": "0.3.1",
+            "version": "0.4.0",
             "devDependencies": {
                 "@commitlint/cli": "^17.0.3",
                 "@commitlint/config-conventional": "^17.0.3",
diff --git a/package.json b/package.json
index 7bc7ae9a..41dd8a88 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
     "name": "atala-prism-mediator",
-    "version": "0.3.1",
+    "version": "0.4.0",
     "engines": {
         "node": ">=16.13.0"
     },
diff --git a/version.sbt b/version.sbt
index 83b6ae33..645dea87 100644
--- a/version.sbt
+++ b/version.sbt
@@ -1 +1 @@
-ThisBuild / version := "0.3.1-SNAPSHOT"
+ThisBuild / version := "0.4.0-SNAPSHOT"