diff --git a/Cargo.toml b/Cargo.toml
index edf8077..0b9242d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "m-bus-parser"
-version = "0.0.20"
+version = "0.0.21"
 edition = "2021"
 description = "A library for parsing M-Bus frames"
 license = "MIT"
diff --git a/cli/Cargo.toml b/cli/Cargo.toml
index a1343af..171c619 100644
--- a/cli/Cargo.toml
+++ b/cli/Cargo.toml
@@ -18,5 +18,5 @@ keywords = ["m-bus", "parser", "parse", "cli"]
 
 
 [dependencies]
-m-bus-parser = { path = "..", version = "0.0.20", features = ["std", "serde"] }
+m-bus-parser = { path = "..", version = "0.0.21", features = ["std", "serde"] }
 clap = { version = "4.5.4", features = ["derive"] }
diff --git a/examples/cortex-m/Cargo.toml b/examples/cortex-m/Cargo.toml
index a7a977f..3db8b27 100644
--- a/examples/cortex-m/Cargo.toml
+++ b/examples/cortex-m/Cargo.toml
@@ -10,7 +10,7 @@ cortex-m = "0.7.7"
 cortex-m-rt = "0.7.3"
 cortex-m-semihosting = "0.5.0"
 panic-halt = "0.2.0"
-m-bus-parser = { path = "../../", version = "0.0.20" }
+m-bus-parser = { path = "../../", version = "0.0.21" }
 # Uncomment for the panic example.
 # panic-itm = "0.4.1"
 
diff --git a/python/Cargo.toml b/python/Cargo.toml
index 980632a..35b88a0 100644
--- a/python/Cargo.toml
+++ b/python/Cargo.toml
@@ -6,7 +6,7 @@ homepage = "https://maebli.github.io/"
 repository = "https://github.com/maebli/m-bus-parser"
 
 [dependencies]
-m-bus-parser = { path = "..", version = "0.0.20", features = ["std", "serde"] }
+m-bus-parser = { path = "..", version = "0.0.21", features = ["std", "serde"] }
 serde_json = "1.0"
 pyo3 = { version = "0.23.1", features = ["extension-module","generate-import-lib"] }
 hex = "0.4.2"
diff --git a/src/user_data/data_information.rs b/src/user_data/data_information.rs
index 97a5077..f983ea2 100644
--- a/src/user_data/data_information.rs
+++ b/src/user_data/data_information.rs
@@ -322,15 +322,10 @@ impl std::fmt::Display for Month {
     }
 }
 
-#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 pub type Year = u16;
-#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 pub type DayOfMonth = u8;
-#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 pub type Hour = u8;
-#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 pub type Minute = u8;
-#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 pub type Second = u8;
 
 #[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
diff --git a/wasm/Cargo.toml b/wasm/Cargo.toml
index 1b3d552..b293013 100644
--- a/wasm/Cargo.toml
+++ b/wasm/Cargo.toml
@@ -19,7 +19,7 @@ default = ["console_error_panic_hook"]
 
 [dependencies]
 wasm-bindgen = "0.2.84"
-m-bus-parser = { path = "..", version = "0.0.20", features = ["std", "serde"] }
+m-bus-parser = { path = "..", version = "0.0.21", features = ["std", "serde"] }
 serde = { version = "1.0" }
 serde_json = "1.0"