diff --git a/Cargo.toml b/Cargo.toml
index 4484939..006f9ae 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -36,7 +36,7 @@ nix = { version = "0.31.2", features = ["mman"] }
 rsproperties = { version = "0.3.0", features = ["builder"] }
 libsqlite3-sys = "0.37.0"
 rand = "0.10.0"
-der = "0.7.10"
+der = "0.8.0"
 toml = "1.1.0"
 regex = "1.12.3"
 hotwatch = "0.5.0"
diff --git a/common/Cargo.toml b/common/Cargo.toml
index 6082049..e32a970 100644
--- a/common/Cargo.toml
+++ b/common/Cargo.toml
@@ -13,7 +13,7 @@ cddl-cat = { version = "^0.7.0", optional = true }
 ciborium = { version = "0.2.2", default-features = false }
 ciborium-io = "^0.2.0"
 coset = "0.4.2"
-der = { version = "^0.7.2", features = ["alloc", "derive"] }
+der = { version = "^0.8.0", features = ["alloc", "derive"] }
 enumn = "0.1.4"
 kmr-derive = { path = "../derive", version = "0.1.0" }
 kmr-wire = { path = "../wire", version = "0.1.0" }
diff --git a/ta/Cargo.toml b/ta/Cargo.toml
index 3769ad9..3cee29b 100644
--- a/ta/Cargo.toml
+++ b/ta/Cargo.toml
@@ -18,7 +18,7 @@ downgrade = []
 ciborium = { version = "0.2.2", default-features = false }
 ciborium-io = "^0.2.0"
 coset = "0.4.2"
-der = { version = "^0.7.8", features = ["alloc", "derive"] }
+der = { version = "^0.8.0", features = ["alloc", "derive"] }
 flagset = "0.4.3"
 kmr-common = { path = "../common", version = "0.1.0" }
 kmr-derive = { path = "../derive", version = "0.1.0" }