diff --git a/example-service/Cargo.toml b/example-service/Cargo.toml
index 3856b2f9c..136a82b25 100644
--- a/example-service/Cargo.toml
+++ b/example-service/Cargo.toml
@@ -18,7 +18,7 @@ anyhow = "1.0"
 clap = { version = "4.4.18", features = ["derive"] }
 log = "0.4"
 futures = "0.3"
-opentelemetry = { version = "0.30.0" }
+opentelemetry = { version = "0.31.0" }
 opentelemetry-otlp = { version = "0.30.0", features = ["grpc-tonic"] }
 rand = "0.8"
 tarpc = { version = "0.37", path = "../tarpc", features = ["full"] }
diff --git a/tarpc/Cargo.toml b/tarpc/Cargo.toml
index 778eb0938..8f260528c 100644
--- a/tarpc/Cargo.toml
+++ b/tarpc/Cargo.toml
@@ -59,7 +59,7 @@ tracing = { version = "0.1", default-features = false, features = [
     "log",
 ] }
 tracing-opentelemetry = { version = "0.31.0", default-features = false }
-opentelemetry = { version = "0.30.0", default-features = false }
+opentelemetry = { version = "0.31.0", default-features = false }
 opentelemetry-semantic-conventions = "0.30.0"
 
 [dev-dependencies]
@@ -68,7 +68,7 @@ bincode = { version = "2.0", features = ["serde"] }
 bytes = { version = "1", features = ["serde"] }
 flate2 = "1.0"
 futures-test = "0.3"
-opentelemetry = { version = "0.30.0", default-features = false }
+opentelemetry = { version = "0.31.0", default-features = false }
 opentelemetry-otlp = { version = "0.30.0", features = ["grpc-tonic"] }
 opentelemetry_sdk = { version = "0.30.0", features = ["rt-tokio"] }
 pin-utils = "0.1.0"