diff --git a/Cargo.lock b/Cargo.lock
index a5287683..d898b444 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1497,7 +1497,7 @@ dependencies = [
 
 [[package]]
 name = "mrml"
-version = "6.0.1"
+version = "7.0.0"
 dependencies = [
  "async-trait",
  "concat-idents",
@@ -1524,7 +1524,7 @@ dependencies = [
 
 [[package]]
 name = "mrml-cli"
-version = "1.7.3"
+version = "1.7.4"
 dependencies = [
  "clap",
  "env_logger",
@@ -1536,7 +1536,7 @@ dependencies = [
 
 [[package]]
 name = "mrml-python"
-version = "0.2.4"
+version = "0.2.5"
 dependencies = [
  "mrml",
  "pyo3",
@@ -1544,7 +1544,7 @@ dependencies = [
 
 [[package]]
 name = "mrml-wasm"
-version = "1.6.1"
+version = "1.6.2"
 dependencies = [
  "console_error_panic_hook",
  "mrml",
diff --git a/examples/axum/Cargo.toml b/examples/axum/Cargo.toml
index 527a9b67..90207b97 100644
--- a/examples/axum/Cargo.toml
+++ b/examples/axum/Cargo.toml
@@ -7,7 +7,7 @@ edition = "2021"
 
 [dependencies]
 axum = { version = "0.8", features = ["macros"] }
-mrml = { version = "6.0.1", path = "../../packages/mrml-core", features = [
+mrml = { version = "7.0.0", path = "../../packages/mrml-core", features = [
     "async",
     "http-loader-async-reqwest",
 ] }
diff --git a/packages/mrml-cli/CHANGELOG.md b/packages/mrml-cli/CHANGELOG.md
index 209c2411..c2c6a29f 100644
--- a/packages/mrml-cli/CHANGELOG.md
+++ b/packages/mrml-cli/CHANGELOG.md
@@ -6,6 +6,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [1.7.4](https://github.com/jdrouet/mrml/compare/mrml-cli-v1.7.3...mrml-cli-v1.7.4) - 2026-04-26
+
+### Other
+
+- updated the following local packages: mrml
+
 ## [1.7.3](https://github.com/jdrouet/mrml/compare/mrml-cli-v1.7.2...mrml-cli-v1.7.3) - 2026-04-25
 
 ### Other
diff --git a/packages/mrml-cli/Cargo.toml b/packages/mrml-cli/Cargo.toml
index dd3b4f44..1543a0cf 100644
--- a/packages/mrml-cli/Cargo.toml
+++ b/packages/mrml-cli/Cargo.toml
@@ -2,7 +2,7 @@
 name = "mrml-cli"
 description = "CLI for the Rust implementation of MJML renderer"
 keywords = ["cli", "email", "mjml"]
-version = "1.7.3"
+version = "1.7.4"
 authors.workspace = true
 edition.workspace = true
 license.workspace = true
@@ -16,7 +16,7 @@ path = "src/main.rs"
 name = "mrml"
 
 [dependencies]
-mrml = { version = "6.0.1", path = "../mrml-core", features = [
+mrml = { version = "7.0.0", path = "../mrml-core", features = [
     "http-loader-ureq",
     "local-loader",
 ] }
diff --git a/packages/mrml-core/CHANGELOG.md b/packages/mrml-core/CHANGELOG.md
index 71c6e96b..b534e758 100644
--- a/packages/mrml-core/CHANGELOG.md
+++ b/packages/mrml-core/CHANGELOG.md
@@ -6,6 +6,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [7.0.0](https://github.com/jdrouet/mrml/compare/mrml-v6.0.1...mrml-v7.0.0) - 2026-04-26
+
+### Fixed
+
+- *(mrml-core)* warn on duplicate attributes and keep first value ([#638](https://github.com/jdrouet/mrml/pull/638))
+
 ## [6.0.1](https://github.com/jdrouet/mrml/compare/mrml-v6.0.0...mrml-v6.0.1) - 2026-04-25
 
 ### Fixed
diff --git a/packages/mrml-core/Cargo.toml b/packages/mrml-core/Cargo.toml
index 7877b372..7077bf2d 100644
--- a/packages/mrml-core/Cargo.toml
+++ b/packages/mrml-core/Cargo.toml
@@ -2,7 +2,7 @@
 name = "mrml"
 description = "Rust implementation of MJML renderer"
 keywords = ["email", "mjml"]
-version = "6.0.1"
+version = "7.0.0"
 authors.workspace = true
 edition.workspace = true
 license.workspace = true
diff --git a/packages/mrml-python/CHANGELOG.md b/packages/mrml-python/CHANGELOG.md
index a44ce65b..4fff9a79 100644
--- a/packages/mrml-python/CHANGELOG.md
+++ b/packages/mrml-python/CHANGELOG.md
@@ -6,6 +6,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.2.5](https://github.com/jdrouet/mrml/compare/mrml-python-v0.2.4...mrml-python-v0.2.5) - 2026-04-26
+
+### Other
+
+- updated the following local packages: mrml
+
 ## [0.2.4](https://github.com/jdrouet/mrml/compare/mrml-python-v0.2.3...mrml-python-v0.2.4) - 2026-04-25
 
 ### Other
diff --git a/packages/mrml-python/Cargo.toml b/packages/mrml-python/Cargo.toml
index f5c252fd..49c2431f 100644
--- a/packages/mrml-python/Cargo.toml
+++ b/packages/mrml-python/Cargo.toml
@@ -2,7 +2,7 @@
 name = "mrml-python"
 description = "Python wrapping on MRML"
 keywords = ["email", "mjml"]
-version = "0.2.4"
+version = "0.2.5"
 authors.workspace = true
 edition.workspace = true
 license.workspace = true
@@ -16,7 +16,7 @@ name = "mrml"
 crate-type = ["cdylib"]
 
 [dependencies]
-mrml = { version = "6.0.1", path = "../mrml-core", features = [
+mrml = { version = "7.0.0", path = "../mrml-core", features = [
     "http-loader-ureq",
     "local-loader",
     "css-inline",
diff --git a/packages/mrml-wasm/CHANGELOG.md b/packages/mrml-wasm/CHANGELOG.md
index 967159cf..2dd7034a 100644
--- a/packages/mrml-wasm/CHANGELOG.md
+++ b/packages/mrml-wasm/CHANGELOG.md
@@ -6,6 +6,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [1.6.2](https://github.com/jdrouet/mrml/compare/mrml-wasm-v1.6.1...mrml-wasm-v1.6.2) - 2026-04-26
+
+### Fixed
+
+- *(mrml-core)* warn on duplicate attributes and keep first value ([#638](https://github.com/jdrouet/mrml/pull/638))
+
 ## [1.6.1](https://github.com/jdrouet/mrml/compare/mrml-wasm-v1.6.0...mrml-wasm-v1.6.1) - 2026-04-25
 
 ### Other
diff --git a/packages/mrml-wasm/Cargo.toml b/packages/mrml-wasm/Cargo.toml
index 55395461..c52db36e 100644
--- a/packages/mrml-wasm/Cargo.toml
+++ b/packages/mrml-wasm/Cargo.toml
@@ -2,7 +2,7 @@
 name = "mrml-wasm"
 description = "Wasm wrapping on MRML"
 keywords = ["email", "mjml"]
-version = "1.6.1"
+version = "1.6.2"
 authors.workspace = true
 edition.workspace = true
 license.workspace = true
@@ -25,7 +25,7 @@ reqwest-include-loader = ["async", "mrml/http-loader-async-reqwest"]
 # code size when deploying.
 console_error_panic_hook = { version = "0.1.7", optional = true }
 
-mrml = { version = "6.0.1", path = "../mrml-core", default-features = false, features = [
+mrml = { version = "7.0.0", path = "../mrml-core", default-features = false, features = [
     "parse",
     "render",
 ] }