diff --git a/Cargo.lock b/Cargo.lock
index 5fb7797..2aa3f36 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1425,6 +1425,26 @@ version = "2.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e3148f5046208a5d56bcfc03053e3ca6334e51da8dfb19b6cdc8b306fae3283e"
 
+[[package]]
+name = "pin-project"
+version = "1.1.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "baf123a161dde1e524adf36f90bc5d8d3462824a9c43553ad07a8183161189ec"
+dependencies = [
+ "pin-project-internal",
+]
+
+[[package]]
+name = "pin-project-internal"
+version = "1.1.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a4502d8515ca9f32f1fb543d987f63d95a14934883db45bdb48060b6b69257f8"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.79",
+]
+
 [[package]]
 name = "pin-project-lite"
 version = "0.2.14"
@@ -2708,6 +2728,10 @@ version = "0.4.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b8fa9be0de6cf49e536ce1851f987bd21a43b771b09473c3549a6c853db37c1c"
 dependencies = [
+ "futures-core",
+ "futures-util",
+ "pin-project",
+ "pin-project-lite",
  "tower-layer",
  "tower-service",
  "tracing",
diff --git a/Cargo.toml b/Cargo.toml
index c078c66..7309be3 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -60,7 +60,7 @@ tokio-util = { version = "0.7", features = ["codec"] }
 # Hyper for connection upgrades (TODO: Update to 1.0 once reqwest supports it)
 hyper = "1.4"
 hyper-util = { version = "0.1.7", features = ["tokio"] }
-tower = "0.4"
+tower = { version = "0.4", features = ["util"] }
 
 bitflags = { version = "2.3.1", features = ["serde"] }
 tdf = { version = "0.4" }