diff --git a/Cargo.lock b/Cargo.lock
index 50fc07f90..467bb7dbe 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1984,15 +1984,14 @@ dependencies = [
 
 [[package]]
 name = "aws-smithy-runtime-api"
-version = "1.16.2"
+version = "1.19.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6d881a7b7ad179fd6611680c9de89f716fb00ab40299a9a7b8c6913e8f7511a8"
+checksum = "c0730c16f91124c6a2abb4932c77e299288b3dd9f967ea2e9ec48cc6731e87a4"
 dependencies = [
  "aws-smithy-async",
  "aws-smithy-runtime-api-macros",
  "aws-smithy-types",
  "bytes",
- "http 0.2.12",
  "http 1.5.0",
  "pin-project-lite",
  "tokio",
@@ -2024,9 +2023,9 @@ dependencies = [
 
 [[package]]
 name = "aws-smithy-types"
-version = "1.6.4"
+version = "1.8.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0b791f3ac597193fe1d08b82366986eb1f5bc31f2ac6c194c0855276116c76cd"
+checksum = "69bb407740a197147da48238ecc94498493c9e85445732360cec180296ca45f1"
 dependencies = [
  "base64-simd",
  "bytes",
diff --git a/Cargo.toml b/Cargo.toml
index ef5885785..7ef4387d8 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -20,7 +20,7 @@ aws-config = { version = "1.8.18", features = ["behavior-version-latest"] }
 aws-sdk-bedrockruntime = { version = "1.133.0", default-features = false, features = ["default-https-client", "rt-tokio"] }
 # Capped below 1.5.0: it makes DeferredSignerSender::send generic, which breaks
 # type inference in aws-runtime 1.7.4 (latest). Lift once aws-runtime ships a fix.
-aws-smithy-types = ">=1.4.9, <1.7.0"
+aws-smithy-types = ">=1.4.9, <1.9.0"
 aws-smithy-runtime-api = "1.14.0"
 aws-credential-types = "1.3.0"
 aws-sigv4 = "1.5.1"