diff --git a/Cargo.lock b/Cargo.lock
index 41a5ce65..402bd9cb 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -155,9 +155,9 @@ dependencies = [
 
 [[package]]
 name = "actix-web"
-version = "4.8.0"
+version = "4.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1988c02af8d2b718c05bc4aeb6a66395b7cdf32858c2c71131e5637a8c05a9ff"
+checksum = "9180d76e5cc7ccbc4d60a506f2c727730b154010262df5b910eb17dbe4b8cb38"
 dependencies = [
  "actix-codec",
  "actix-http",
@@ -178,6 +178,7 @@ dependencies = [
  "encoding_rs",
  "futures-core",
  "futures-util",
+ "impl-more",
  "itoa",
  "language-tags",
  "log",
diff --git a/Cargo.toml b/Cargo.toml
index 9dc2ad1c..f793e113 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -39,7 +39,7 @@ nonzero_ext = "0.3"
 
 # actix & opentelemetry dependencies
 # these package versions should be moved in lockstep to match upstream
-actix-web = { version = "4.8", features = ["rustls-0_23"] }
+actix-web = { version = "4.9", features = ["rustls-0_23"] }
 tracing-actix-web = "0.7"
 actix-web-opentelemetry = { version = "0.18", features = ["metrics", "metrics-prometheus"] }