diff --git a/Cargo.lock b/Cargo.lock
index fca461f24b..6ee968a2c3 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2094,9 +2094,9 @@ dependencies = [
 
 [[package]]
 name = "either"
-version = "1.9.0"
+version = "1.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a26ae43d7bcc3b814de94796a5e736d4029efb0ee900c12e2d54c993ad1a1e07"
+checksum = "11157ac094ffbdde99aa67b23417ebdd801842852b500e395a45a9c0aac03e4a"
 
 [[package]]
 name = "elliptic-curve"
diff --git a/Cargo.toml b/Cargo.toml
index f71bd77730..8a8273f519 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -201,7 +201,7 @@ dns-service-client = { path = "clients/dns-service-client" }
 dpd-client = { path = "clients/dpd-client" }
 dropshot = { git = "https://github.com/oxidecomputer/dropshot", branch = "main", features = [ "usdt-probes" ] }
 dyn-clone = "1.0.16"
-either = "1.9.0"
+either = "1.10.0"
 expectorate = "1.1.0"
 fatfs = "0.3.6"
 filetime = "0.2.23"
diff --git a/workspace-hack/Cargo.toml b/workspace-hack/Cargo.toml
index 098be26460..718a0b8d52 100644
--- a/workspace-hack/Cargo.toml
+++ b/workspace-hack/Cargo.toml
@@ -39,7 +39,7 @@ crypto-common = { version = "0.1.6", default-features = false, features = ["getr
 der = { version = "0.7.8", default-features = false, features = ["derive", "flagset", "oid", "pem", "std"] }
 diesel = { version = "2.1.4", features = ["chrono", "i-implement-a-third-party-backend-and-opt-into-breaking-changes", "network-address", "postgres", "r2d2", "serde_json", "uuid"] }
 digest = { version = "0.10.7", features = ["mac", "oid", "std"] }
-either = { version = "1.9.0" }
+either = { version = "1.10.0" }
 elliptic-curve = { version = "0.13.8", features = ["ecdh", "hazmat", "pem", "std"] }
 ff = { version = "0.13.0", default-features = false, features = ["alloc"] }
 flate2 = { version = "1.0.28" }
@@ -145,7 +145,7 @@ crypto-common = { version = "0.1.6", default-features = false, features = ["getr
 der = { version = "0.7.8", default-features = false, features = ["derive", "flagset", "oid", "pem", "std"] }
 diesel = { version = "2.1.4", features = ["chrono", "i-implement-a-third-party-backend-and-opt-into-breaking-changes", "network-address", "postgres", "r2d2", "serde_json", "uuid"] }
 digest = { version = "0.10.7", features = ["mac", "oid", "std"] }
-either = { version = "1.9.0" }
+either = { version = "1.10.0" }
 elliptic-curve = { version = "0.13.8", features = ["ecdh", "hazmat", "pem", "std"] }
 ff = { version = "0.13.0", default-features = false, features = ["alloc"] }
 flate2 = { version = "1.0.28" }