diff --git a/common/Cargo.toml b/common/Cargo.toml
index 4f22cf5..d6c12b8 100644
--- a/common/Cargo.toml
+++ b/common/Cargo.toml
@@ -13,7 +13,7 @@ salty = { git = "https://github.com/oxidecomputer/salty", branch = "v0.2.0-zeroi
 
 [dev-dependencies]
 ed25519 = { version = "1.5.2" }
-ed25519-dalek = { version = "1.0.1", features = ["u64_backend"]}
+ed25519-dalek = { version = "2.0.0", features = ["u64_backend"]}
 salty = { git = "https://github.com/oxidecomputer/salty", branch = "v0.2.0-zeroize" }
 rand = "0.8.5"
 
diff --git a/session/Cargo.toml b/session/Cargo.toml
index 581040a..17125bc 100644
--- a/session/Cargo.toml
+++ b/session/Cargo.toml
@@ -18,7 +18,7 @@ serde = { version = "1.0.136", default-features = false, features = ["derive"]
 #
 rand_core = { version = "0.6.3", features = ["getrandom"] }
 ed25519 = { version = "1.4.1" }
-ed25519-dalek = { version = "1.0.1", features = ["u64_backend"]}
+ed25519-dalek = { version = "2.0.0", features = ["u64_backend"]}
 x25519-dalek = { version = "2.0.0-rc.2" }
 sha3 = "0.10.1"
 chacha20poly1305 = { version = "0.10", features = ["heapless"] }