diff --git a/curve25519-parser/Cargo.toml b/curve25519-parser/Cargo.toml
index bfe20ff..4ea87b8 100644
--- a/curve25519-parser/Cargo.toml
+++ b/curve25519-parser/Cargo.toml
@@ -12,7 +12,7 @@ readme = "../README.md"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-der-parser = { version = "8", default-features = false}
+der-parser = { version = "9", default-features = false}
 curve25519-dalek = { version = "4", default-features = false}
 x25519-dalek = { version = "2", default-features = false, features=["static_secrets"]}
 sha2 = { version = "0", default-features = false}