diff --git a/Cargo.lock b/Cargo.lock
index 72f0c2ae..0b65df30 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -839,7 +839,7 @@ dependencies = [
  "float-cmp 0.10.0",
  "geo",
  "influxdb",
- "opentelemetry",
+ "opentelemetry 0.26.0",
  "opentelemetry-appender-tracing",
  "opentelemetry-otlp",
  "opentelemetry-semantic-conventions",
@@ -4787,13 +4787,27 @@ dependencies = [
  "thiserror 1.0.69",
 ]
 
+[[package]]
+name = "opentelemetry"
+version = "0.27.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0f3cebff57f7dbd1255b44d8bddc2cebeb0ea677dbaa2e25a3070a91b318f660"
+dependencies = [
+ "futures-core",
+ "futures-sink",
+ "js-sys",
+ "once_cell",
+ "pin-project-lite",
+ "thiserror 1.0.69",
+]
+
 [[package]]
 name = "opentelemetry-appender-tracing"
-version = "0.26.0"
+version = "0.27.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "14f62d9a23c680ab91c74605f5006110768eb67600bb654937fef5c852fb8ec7"
+checksum = "ab5feffc321035ad94088a7e5333abb4d84a8726e54a802e736ce9dd7237e85b"
 dependencies = [
- "opentelemetry",
+ "opentelemetry 0.27.0",
  "tracing",
  "tracing-core",
  "tracing-subscriber",
@@ -4808,7 +4822,7 @@ dependencies = [
  "async-trait",
  "futures-core",
  "http 1.1.0",
- "opentelemetry",
+ "opentelemetry 0.26.0",
  "opentelemetry-proto",
  "opentelemetry_sdk",
  "prost",
@@ -4823,7 +4837,7 @@ version = "0.26.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "abbbb5e699de56aacd607631354d0ed0315e67ed36b7398849e4f8a039eaa07e"
 dependencies = [
- "opentelemetry",
+ "opentelemetry 0.26.0",
  "opentelemetry_sdk",
  "prost",
  "tonic",
@@ -4844,7 +4858,7 @@ dependencies = [
  "async-trait",
  "chrono",
  "futures-util",
- "opentelemetry",
+ "opentelemetry 0.26.0",
  "opentelemetry_sdk",
  "ordered-float",
  "serde",
@@ -4864,7 +4878,7 @@ dependencies = [
  "futures-util",
  "glob",
  "once_cell",
- "opentelemetry",
+ "opentelemetry 0.26.0",
  "percent-encoding",
  "rand",
  "serde_json",
@@ -5856,7 +5870,7 @@ dependencies = [
  "lifx-core",
  "maud",
  "openid",
- "opentelemetry",
+ "opentelemetry 0.26.0",
  "opentelemetry-semantic-conventions",
  "pyo3",
  "regex",
@@ -7747,7 +7761,7 @@ checksum = "dc58af5d3f6c5811462cabb3289aec0093f7338e367e5a33d28c0433b3c7360b"
 dependencies = [
  "js-sys",
  "once_cell",
- "opentelemetry",
+ "opentelemetry 0.26.0",
  "opentelemetry_sdk",
  "smallvec",
  "tracing",
diff --git a/brian-backend/Cargo.toml b/brian-backend/Cargo.toml
index 56ef6ebc..d98913d6 100644
--- a/brian-backend/Cargo.toml
+++ b/brian-backend/Cargo.toml
@@ -38,7 +38,7 @@ opentelemetry-semantic-conventions = "0.26.0"
 opentelemetry-otlp = { version = "0.26.0", features = ["logs", "metrics", "tls-webpki-roots"] }
 opentelemetry-stdout = "0.26.0"
 tonic = "0.12.3"
-opentelemetry-appender-tracing = "0.26.0"
+opentelemetry-appender-tracing = "0.27.0"
 rstest = "0.22.0"
 
 [dev-dependencies]