diff --git a/Cargo.lock b/Cargo.lock
index 26e639d..11016ee 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1398,7 +1398,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ccc2776f0c61eca1ca32528f85548abd1a4be8fb53d1b21c013e4f18da1e7090"
 dependencies = [
  "data-encoding",
- "syn 2.0.119",
+ "syn 1.0.109",
 ]
 
 [[package]]
@@ -1447,7 +1447,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e7c1832837b905bbfb5101e07cc24c8deddf52f93225eee6ead5f4d63d53ddcb"
 dependencies = [
  "const-oid",
- "der_derive",
+ "der_derive 0.7.3",
  "flagset",
  "pem-rfc7468 0.7.0",
  "zeroize",
@@ -1459,6 +1459,7 @@ version = "0.8.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a69dedd701da44b0536442edf09c81a64b0ab97a7a4a5e3d1971f00027cbc63d"
 dependencies = [
+ "der_derive 0.8.0",
  "pem-rfc7468 1.0.0",
  "zeroize",
 ]
@@ -1488,6 +1489,17 @@ dependencies = [
  "syn 2.0.119",
 ]
 
+[[package]]
+name = "der_derive"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "59600e2c2d636fde9b65e99cc6445ac770c63d3628195ff39932b8d6d7409903"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.119",
+]
+
 [[package]]
 name = "deranged"
 version = "0.5.8"
@@ -3589,7 +3601,7 @@ dependencies = [
  "cmac",
  "cms",
  "const-oid",
- "der 0.7.10",
+ "der 0.8.1",
  "des",
  "ecdsa",
  "ed25519-dalek",
@@ -3771,7 +3783,7 @@ dependencies = [
  "cms",
  "const-oid",
  "coset",
- "der 0.7.10",
+ "der 0.8.1",
  "ecdsa",
  "ed25519-dalek",
  "elliptic-curve",
diff --git a/Cargo.toml b/Cargo.toml
index ae319ce..5398f95 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -13,7 +13,7 @@ rust-version = "1.87"
 [workspace.dependencies]
 # Crypto and certificates
 x509-cert = { version = "0.2", features = ["pem", "builder"] }
-der = { version = "0.7", features = ["pem", "derive"] }
+der = { version = "0.8", features = ["pem", "derive"] }
 const-oid = "0.9"
 sha1 = { version = "0.10", features = ["oid"] }
 sha2 = "0.10"