diff --git a/example-service/Cargo.toml b/example-service/Cargo.toml
index 9f9abf07..ec28b637 100644
--- a/example-service/Cargo.toml
+++ b/example-service/Cargo.toml
@@ -19,7 +19,7 @@ clap = { version = "4.4.18", features = ["derive"] }
 log = "0.4"
 futures = "0.3"
 opentelemetry = { version = "0.26.0" }
-opentelemetry-otlp = "0.26.0"
+opentelemetry-otlp = "0.27.0"
 rand = "0.8"
 tarpc = { version = "0.35", path = "../tarpc", features = ["full"] }
 tokio = { version = "1", features = ["macros", "net", "rt-multi-thread"] }
diff --git a/tarpc/Cargo.toml b/tarpc/Cargo.toml
index 38fc9dc7..3d05184b 100644
--- a/tarpc/Cargo.toml
+++ b/tarpc/Cargo.toml
@@ -69,7 +69,7 @@ bytes = { version = "1", features = ["serde"] }
 flate2 = "1.0"
 futures-test = "0.3"
 opentelemetry = { version = "0.26.0", default-features = false }
-opentelemetry-otlp = "0.26.0"
+opentelemetry-otlp = "0.27.0"
 opentelemetry_sdk = { version = "0.26.0", features = ["rt-tokio"] }
 pin-utils = "0.1.0"
 serde_bytes = "0.11"