diff --git a/Cargo.toml b/Cargo.toml
index 2cf2a1b..59cb50b 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -53,7 +53,7 @@ m-bus-core = {path = "crates/m-bus-core"}
 m-bus-application-layer = {path = "crates/m-bus-application-layer"}
 aes = { version = "0.8", optional = true, default-features = false }
 cbc = { version = "0.1", optional = true, default-features = false }
-cipher = { version = "0.4", optional = true, default-features = false, features = ["block-padding"] }
+cipher = { version = "0.5", optional = true, default-features = false, features = ["block-padding"] }
 aes-gcm = { version = "0.10", optional = true, default-features = false, features = ["aes"] }
 ccm = { version = "0.5", optional = true, default-features = false }
 
diff --git a/crates/m-bus-core/Cargo.toml b/crates/m-bus-core/Cargo.toml
index 9dafbbe..8a6727d 100644
--- a/crates/m-bus-core/Cargo.toml
+++ b/crates/m-bus-core/Cargo.toml
@@ -15,4 +15,4 @@ serde = { version = "1.0", features = ["derive"], optional = true }
 defmt = { version = "1.0.1", optional = true }
 aes = { version = "0.8", optional = true }
 cbc = { version = "0.1", optional = true }
-cipher = { version = "0.4", optional = true }
+cipher = { version = "0.5", optional = true }