diff --git a/curve25519-parser/Cargo.toml b/curve25519-parser/Cargo.toml
index 8cb9da49..a04b0030 100644
--- a/curve25519-parser/Cargo.toml
+++ b/curve25519-parser/Cargo.toml
@@ -14,7 +14,7 @@ readme = "../README.md"
 [dependencies]
 der-parser = "3"
 # 'nom' dependency from 'der-parser'
-nom = "5"
+nom = "6"
 x25519-dalek = "0"
 curve25519-dalek = "2"
 sha2 = "0"