diff --git a/examples/gen-axum/Cargo.lock b/examples/gen-axum/Cargo.lock
index f4b5499..9f47a6c 100644
--- a/examples/gen-axum/Cargo.lock
+++ b/examples/gen-axum/Cargo.lock
@@ -873,7 +873,7 @@ dependencies = [
  "tower-http 0.4.0",
  "tracing",
  "tracing-appender",
- "tracing-opentelemetry 0.18.0",
+ "tracing-opentelemetry 0.20.0",
  "tracing-subscriber",
  "ulid",
  "url",
@@ -1227,9 +1227,9 @@ checksum = "fad582f4b9e86b6caa621cabeb0963332d92eea04729ab12892c2533951e6440"
 
 [[package]]
 name = "js-sys"
-version = "0.3.60"
+version = "0.3.64"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "49409df3e3bf0856b916e2ceaca09ee28e6871cf7d9ce97a692cacfdb2a25a47"
+checksum = "c5f195fe497f702db0f318b07fdd68edb16955aed830df8363d837542f8f935a"
 dependencies = [
  "wasm-bindgen",
 ]
@@ -1393,7 +1393,7 @@ dependencies = [
  "indexmap",
  "metrics",
  "num_cpus",
- "ordered-float",
+ "ordered-float 2.10.0",
  "parking_lot 0.12.1",
  "portable-atomic",
  "quanta",
@@ -1658,8 +1658,18 @@ version = "0.18.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "69d6c3d7288a106c0a363e4b0e8d308058d56902adefb16f4936f417ffef086e"
 dependencies = [
- "opentelemetry_api",
- "opentelemetry_sdk",
+ "opentelemetry_api 0.18.0",
+ "opentelemetry_sdk 0.18.0",
+]
+
+[[package]]
+name = "opentelemetry"
+version = "0.20.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9591d937bc0e6d2feb6f71a559540ab300ea49955229c347a517a28d27784c54"
+dependencies = [
+ "opentelemetry_api 0.20.0",
+ "opentelemetry_sdk 0.20.0",
 ]
 
 [[package]]
@@ -1671,7 +1681,7 @@ dependencies = [
  "async-trait",
  "bytes",
  "http",
- "opentelemetry_api",
+ "opentelemetry_api 0.18.0",
 ]
 
 [[package]]
@@ -1732,6 +1742,22 @@ dependencies = [
  "thiserror",
 ]
 
+[[package]]
+name = "opentelemetry_api"
+version = "0.20.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8a81f725323db1b1206ca3da8bb19874bbd3f57c3bcd59471bfb04525b265b9b"
+dependencies = [
+ "futures-channel",
+ "futures-util",
+ "indexmap",
+ "js-sys",
+ "once_cell",
+ "pin-project-lite",
+ "thiserror",
+ "urlencoding",
+]
+
 [[package]]
 name = "opentelemetry_sdk"
 version = "0.18.0"
@@ -1746,7 +1772,7 @@ dependencies = [
  "futures-executor",
  "futures-util",
  "once_cell",
- "opentelemetry_api",
+ "opentelemetry_api 0.18.0",
  "percent-encoding",
  "rand 0.8.5",
  "thiserror",
@@ -1754,6 +1780,26 @@ dependencies = [
  "tokio-stream",
 ]
 
+[[package]]
+name = "opentelemetry_sdk"
+version = "0.20.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fa8e705a0612d48139799fcbaba0d4a90f06277153e43dd2bdc16c6f0edd8026"
+dependencies = [
+ "async-trait",
+ "crossbeam-channel",
+ "futures-channel",
+ "futures-executor",
+ "futures-util",
+ "once_cell",
+ "opentelemetry_api 0.20.0",
+ "ordered-float 3.7.0",
+ "percent-encoding",
+ "rand 0.8.5",
+ "regex",
+ "thiserror",
+]
+
 [[package]]
 name = "ordered-float"
 version = "2.10.0"
@@ -1763,6 +1809,15 @@ dependencies = [
  "num-traits",
 ]
 
+[[package]]
+name = "ordered-float"
+version = "3.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2fc2dbde8f8a79f2102cc474ceb0ad68e3b80b85289ea62389b60e66777e4213"
+dependencies = [
+ "num-traits",
+]
+
 [[package]]
 name = "ordered-multimap"
 version = "0.4.3"
@@ -3266,6 +3321,20 @@ dependencies = [
  "tracing-subscriber",
 ]
 
+[[package]]
+name = "tracing-opentelemetry"
+version = "0.20.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fc09e402904a5261e42cf27aea09ccb7d5318c6717a9eec3d8e2e65c56b18f19"
+dependencies = [
+ "once_cell",
+ "opentelemetry 0.20.0",
+ "tracing",
+ "tracing-core",
+ "tracing-log",
+ "tracing-subscriber",
+]
+
 [[package]]
 name = "tracing-serde"
 version = "0.1.3"
@@ -3386,6 +3455,12 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "urlencoding"
+version = "2.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "daf8dba3b7eb870caf1ddeed7bc9d2a049f3cfdfae7cb521b087cc33ae4c49da"
+
 [[package]]
 name = "utoipa"
 version = "3.3.0"
@@ -3501,9 +3576,9 @@ checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
 
 [[package]]
 name = "wasm-bindgen"
-version = "0.2.83"
+version = "0.2.87"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "eaf9f5aceeec8be17c128b2e93e031fb8a4d469bb9c4ae2d7dc1888b26887268"
+checksum = "7706a72ab36d8cb1f80ffbf0e071533974a60d0a308d01a5d0375bf60499a342"
 dependencies = [
  "cfg-if",
  "wasm-bindgen-macro",
@@ -3511,16 +3586,16 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-backend"
-version = "0.2.83"
+version = "0.2.87"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4c8ffb332579b0557b52d268b91feab8df3615f265d5270fec2a8c95b17c1142"
+checksum = "5ef2b6d3c510e9625e5fe6f509ab07d66a760f0885d858736483c32ed7809abd"
 dependencies = [
  "bumpalo",
  "log",
  "once_cell",
  "proc-macro2",
  "quote",
- "syn 1.0.107",
+ "syn 2.0.16",
  "wasm-bindgen-shared",
 ]
 
@@ -3538,9 +3613,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-macro"
-version = "0.2.83"
+version = "0.2.87"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "052be0f94026e6cbc75cdefc9bae13fd6052cdcaf532fa6c45e7ae33a1e6c810"
+checksum = "dee495e55982a3bd48105a7b947fd2a9b4a8ae3010041b9e0faab3f9cd028f1d"
 dependencies = [
  "quote",
  "wasm-bindgen-macro-support",
@@ -3548,22 +3623,22 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-macro-support"
-version = "0.2.83"
+version = "0.2.87"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "07bc0c051dc5f23e307b13285f9d75df86bfdf816c5721e573dec1f9b8aa193c"
+checksum = "54681b18a46765f095758388f2d0cf16eb8d4169b639ab575a8f5693af210c7b"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 1.0.107",
+ "syn 2.0.16",
  "wasm-bindgen-backend",
  "wasm-bindgen-shared",
 ]
 
 [[package]]
 name = "wasm-bindgen-shared"
-version = "0.2.83"
+version = "0.2.87"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1c38c045535d93ec4f0b4defec448e4291638ee608530863b1e2ba115d4fff7f"
+checksum = "ca6ad05a4870b2bf5fe995117d3728437bd27d7cd5f06f13c17443ef369775a1"
 
 [[package]]
 name = "wasm-timer"
diff --git a/examples/gen-axum/Cargo.toml b/examples/gen-axum/Cargo.toml
index e8c9ae5..7030589 100644
--- a/examples/gen-axum/Cargo.toml
+++ b/examples/gen-axum/Cargo.toml
@@ -77,7 +77,7 @@ tower = "0.4"
 tower-http = { version = "0.4", features = ["catch-panic", "request-id", "sensitive-headers", "timeout", "trace", "util"] }
 tracing = "0.1"
 tracing-appender = "0.2"
-tracing-opentelemetry = "0.18"
+tracing-opentelemetry = "0.20"
 tracing-subscriber = { version = "0.3", features = ["env-filter", "json", "parking_lot", "registry"] }
 ulid = { version = "1.0", features = ["serde"] }
 url = "2.3"