diff --git a/Cargo.lock b/Cargo.lock
index 0d3a70b..7fca47f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2487,12 +2487,14 @@ dependencies = [
 
 [[package]]
 name = "tracing-opentelemetry"
-version = "0.20.0"
+version = "0.21.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fc09e402904a5261e42cf27aea09ccb7d5318c6717a9eec3d8e2e65c56b18f19"
+checksum = "75327c6b667828ddc28f5e3f169036cb793c3f588d83bf0f262a7f062ffed3c8"
 dependencies = [
  "once_cell",
  "opentelemetry",
+ "opentelemetry_sdk",
+ "smallvec",
  "tracing",
  "tracing-core",
  "tracing-log",
diff --git a/backend/rvoc-backend/Cargo.toml b/backend/rvoc-backend/Cargo.toml
index 0b05f74..b4ec1bf 100644
--- a/backend/rvoc-backend/Cargo.toml
+++ b/backend/rvoc-backend/Cargo.toml
@@ -23,7 +23,7 @@ clap = { version = "4.3.19", features = ["derive"] }
 # logging and telemetry
 tracing = "0.1.37"
 tracing-subscriber = { version = "0.3.17", features = ["fmt", "json"] }
-tracing-opentelemetry = { version = "0.20.0" }
+tracing-opentelemetry = { version = "0.21.0" }
 opentelemetry = { version = "0.20.0", features = ["rt-tokio-current-thread"] }
 opentelemetry-otlp = { version = "0.13.0" }