diff --git a/Cargo.lock b/Cargo.lock
index 08f8c88..04726a1 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2730,18 +2730,18 @@ checksum = "7da8b5736845d9f2fcb837ea5d9e2628564b3b043a70948a3f0b778838c5fb4f"
 
 [[package]]
 name = "strum"
-version = "0.27.2"
+version = "0.28.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "af23d6f6c1a224baef9d3f61e287d2761385a5b88fdab4eb4c6f11aeb54c4bcf"
+checksum = "9628de9b8791db39ceda2b119bbe13134770b56c138ec1d3af810d045c04f9bd"
 dependencies = [
  "strum_macros",
 ]
 
 [[package]]
 name = "strum_macros"
-version = "0.27.2"
+version = "0.28.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7695ce3845ea4b33927c055a39dc438a45b059f7c1b3d91d38d10355fb8cbca7"
+checksum = "ab85eea0270ee17587ed4156089e10b9e6880ee688791d45a905f5b1ca36f664"
 dependencies = [
  "heck",
  "proc-macro2",
diff --git a/cdx-core/Cargo.toml b/cdx-core/Cargo.toml
index 2a4871b..d717a5e 100644
--- a/cdx-core/Cargo.toml
+++ b/cdx-core/Cargo.toml
@@ -98,7 +98,7 @@ der = { version = "0.8", features = ["std"], optional = true }
 chrono = { version = "0.4", features = ["serde", "now"], default-features = false }
 
 # Derive macros for Display/AsRefStr
-strum = { version = "0.27", features = ["derive"] }
+strum = { version = "0.28", features = ["derive"] }
 
 # Error handling
 thiserror = "2.0"