diff --git a/Cargo.lock b/Cargo.lock
index b18955ba..dd264da7 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1889,9 +1889,9 @@ checksum = "af150ab688ff2122fcef229be89cb50dd66af9e01a4ff320cc137eecc9bacc38"
 
 [[package]]
 name = "janus_messages"
-version = "0.5.18"
+version = "0.5.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cebe347c8f5e8ed33db8d5c5a5f41e2fee1c802ed3935aa956996e494de0b1db"
+checksum = "504211a6c651fcace9a9ad3b68bc032244ada5378e07b9d00ea68e0efe6a8feb"
 dependencies = [
  "anyhow",
  "base64 0.21.3",
diff --git a/Cargo.toml b/Cargo.toml
index 3c936457..967c7a50 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -26,7 +26,7 @@ env_logger = "0.10.0"
 fastrand = "2.0.0"
 futures-lite = "1.13.0"
 git-version = "0.3.5"
-janus_messages = "0.5.18"
+janus_messages = "0.5.19"
 log = "0.4.20"
 opentelemetry = { version = "0.19.0", features = ["metrics"] }
 opentelemetry-prometheus = { version = "0.12.0", features = [
diff --git a/client/Cargo.toml b/client/Cargo.toml
index bbdcc8da..0ce23be1 100644
--- a/client/Cargo.toml
+++ b/client/Cargo.toml
@@ -24,7 +24,7 @@ uuid = { version = "1.4.1", features = ["v4", "fast-rng", "serde"] }
 time = { version = "0.3.28", features = ["serde", "serde-well-known"] }
 log = "0.4.20"
 pad-adapter = "0.1.1"
-janus_messages = "0.5.18"
+janus_messages = "0.5.19"
 
 [dev-dependencies]
 divviup-api = { version = "*", path = ".." }