diff --git a/CHANGELOG.md b/CHANGELOG.md
index b610a3c..8b0024d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/).
 
 ## [Unreleased]
 
+## [0.4.0] - 2026-05-05
+
+### Changed
+
+- Bumped `github.com/Notabene-id/go-didcomm` from v0.2.0 to v0.4.0
+
 ## [0.3.0] - 2026-05-04
 
 ### Added
diff --git a/cmd/tap/main.go b/cmd/tap/main.go
index 9f72a58..279a691 100644
--- a/cmd/tap/main.go
+++ b/cmd/tap/main.go
@@ -7,7 +7,7 @@ import (
 	"github.com/Notabene-id/go-didcomm/cli"
 )
 
-const version = "0.3.0"
+const version = "0.4.0"
 
 const usage = `tap - TAP (Transaction Authorization Protocol) CLI
 
diff --git a/go.mod b/go.mod
index 63fcb81..225cd15 100644
--- a/go.mod
+++ b/go.mod
@@ -3,7 +3,7 @@ module github.com/TransactionAuthorizationProtocol/tap-go
 go 1.26.2
 
 require (
-	github.com/Notabene-id/go-didcomm v0.2.0
+	github.com/Notabene-id/go-didcomm v0.4.0
 	github.com/google/uuid v1.6.0
 )
 
diff --git a/go.sum b/go.sum
index dfcf1d1..62e6571 100644
--- a/go.sum
+++ b/go.sum
@@ -2,6 +2,8 @@ filippo.io/edwards25519 v1.2.0 h1:crnVqOiS4jqYleHd9vaKZ+HKtHfllngJIiOpNpoJsjo=
 filippo.io/edwards25519 v1.2.0/go.mod h1:xzAOLCNug/yB62zG1bQ8uziwrIqIuxhctzJT18Q77mc=
 github.com/Notabene-id/go-didcomm v0.2.0 h1:sTpG8zayJWn3GW8L7iKqtE1dEm2Lvmv8Xmk5yj5I9Ek=
 github.com/Notabene-id/go-didcomm v0.2.0/go.mod h1:wIm3s9UCKYYLe2zIysHjTKj7SCU9g25HUWWWc8h9mho=
+github.com/Notabene-id/go-didcomm v0.4.0 h1:r2P+fw4Rq1/uCo8kMonWiX8PRF7Hszkc54IK9iwLpSs=
+github.com/Notabene-id/go-didcomm v0.4.0/go.mod h1:wIm3s9UCKYYLe2zIysHjTKj7SCU9g25HUWWWc8h9mho=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=