diff --git a/Cargo.lock b/Cargo.lock
index 5a3133c..8542b16 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1433,9 +1433,9 @@ dependencies = [
 
 [[package]]
 name = "opentelemetry"
-version = "0.15.0"
+version = "0.16.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ff27b33e30432e7b9854936693ca103d8591b0501f7ae9f633de48cda3bf2a67"
+checksum = "e1cf9b1c4e9a6c4de793c632496fa490bdc0e1eea73f0c91394f7b6990935d22"
 dependencies = [
  "async-std",
  "async-trait",
diff --git a/bagua-core-internal/Cargo.toml b/bagua-core-internal/Cargo.toml
index 3ac847b..f3309da 100644
--- a/bagua-core-internal/Cargo.toml
+++ b/bagua-core-internal/Cargo.toml
@@ -30,7 +30,7 @@ ureq = "2.2"
 num-traits = "0.2"
 num-derive = "0.3"
 display_utils = "0.4.0"
-opentelemetry = { version = "0.15", features = ["serialize", "metrics"] }
+opentelemetry = { version = "0.16", features = ["serialize", "metrics"] }
 bagua-opentelemetry = { path = "../bagua-opentelemetry" }
 
 [dependencies.pyo3]
diff --git a/bagua-opentelemetry/Cargo.toml b/bagua-opentelemetry/Cargo.toml
index bd3d13b..b0df5f3 100644
--- a/bagua-opentelemetry/Cargo.toml
+++ b/bagua-opentelemetry/Cargo.toml
@@ -9,7 +9,7 @@ tracing = "0.1"
 async-std = { version = "1.10", features = ["attributes", "tokio1"] }
 async-trait = { version = "0.1" }
 hyper = { version = "0.14", features = ["full"] }
-opentelemetry = { version = "0.15", default-features = false, features = [
+opentelemetry = { version = "0.16", default-features = false, features = [
     "trace",
     "rt-async-std",
 ] }