diff --git a/go.mod b/go.mod
index 278d1cb2..c5467670 100644
--- a/go.mod
+++ b/go.mod
@@ -12,7 +12,7 @@ require (
 	github.com/aws/aws-sdk-go-v2/credentials v1.19.35
 	github.com/aws/aws-sdk-go-v2/feature/s3/transfermanager v0.3.12
 	github.com/aws/aws-sdk-go-v2/service/s3 v1.107.1
-	github.com/aws/smithy-go v1.27.7
+	github.com/aws/smithy-go v1.27.8
 	github.com/cbergoon/merkletree v0.2.0
 	github.com/cilium/ebpf v0.22.0
 	github.com/cncf/xds/go v0.0.0-20260202195803-dba9d589def2
diff --git a/go.sum b/go.sum
index d11c0b44..ece8e841 100644
--- a/go.sum
+++ b/go.sum
@@ -140,6 +140,8 @@ github.com/aws/smithy-go v1.27.6 h1:0zjT8jgK3jbrTT7JJ3EE6JsMhX8JTrZ+f1sEndYDXrA=
 github.com/aws/smithy-go v1.27.6/go.mod h1:YE2RhdIuDbA5E5bTdciG9KrW3+TiEONeUWCqxX9i1Fc=
 github.com/aws/smithy-go v1.27.7 h1:Zgj5z4LfcDYoQIVk+n/yGdTkP/2y6ZT5vYxe0fp7bqE=
 github.com/aws/smithy-go v1.27.7/go.mod h1:YE2RhdIuDbA5E5bTdciG9KrW3+TiEONeUWCqxX9i1Fc=
+github.com/aws/smithy-go v1.27.8 h1:FR0dxZfIlV7Z8eh2iHfIofdunw382XsDV3Mxt9nUvRY=
+github.com/aws/smithy-go v1.27.8/go.mod h1:YE2RhdIuDbA5E5bTdciG9KrW3+TiEONeUWCqxX9i1Fc=
 github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
 github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
 github.com/brianvoe/gofakeit/v6 v6.28.0 h1:Xib46XXuQfmlLS2EXRuJpqcw8St6qSZz75OUo0tgAW4=
diff --git a/vendor/github.com/aws/smithy-go/CHANGELOG.md b/vendor/github.com/aws/smithy-go/CHANGELOG.md
index ea0448c3..88de0403 100644
--- a/vendor/github.com/aws/smithy-go/CHANGELOG.md
+++ b/vendor/github.com/aws/smithy-go/CHANGELOG.md
@@ -1,3 +1,12 @@
+# Release (2026-08-14)
+
+## General Highlights
+* **Dependency Update**: Updated to the latest SDK module versions
+
+## Module Highlights
+* `github.com/aws/smithy-go`: v1.27.8
+  * **Bug Fix**: Restore draining the HTTP response body in `CloseResponseBody` to avoid issues with TCP connection reuse.
+
 # Release (2026-08-07)
 
 ## General Highlights
diff --git a/vendor/github.com/aws/smithy-go/go_module_metadata.go b/vendor/github.com/aws/smithy-go/go_module_metadata.go
index 3dca7140..005dac8f 100644
--- a/vendor/github.com/aws/smithy-go/go_module_metadata.go
+++ b/vendor/github.com/aws/smithy-go/go_module_metadata.go
@@ -3,4 +3,4 @@
 package smithy
 
 // goModuleVersion is the tagged release for this module
-const goModuleVersion = "1.27.7"
+const goModuleVersion = "1.27.8"
diff --git a/vendor/github.com/aws/smithy-go/transport/http/middleware_close_response_body.go b/vendor/github.com/aws/smithy-go/transport/http/middleware_close_response_body.go
index 820e91e5..a7e70b1c 100644
--- a/vendor/github.com/aws/smithy-go/transport/http/middleware_close_response_body.go
+++ b/vendor/github.com/aws/smithy-go/transport/http/middleware_close_response_body.go
@@ -20,6 +20,12 @@ func CloseResponseBody(ctx context.Context, resp *Response, isStreaming bool, op
 		return
 	}
 
+	// Drain to EOF before closing; a body closed while unread prevents
+	// connection reuse.
+	if _, copyErr := io.Copy(io.Discard, resp.Body); copyErr != nil {
+		middleware.GetLogger(ctx).Logf(logging.Warn, "failed to discard remaining HTTP response body, this may affect connection reuse")
+	}
+
 	if closeErr := resp.Body.Close(); closeErr != nil {
 		middleware.GetLogger(ctx).Logf(logging.Warn, "failed to close HTTP response body, this may affect connection reuse")
 	}
diff --git a/vendor/modules.txt b/vendor/modules.txt
index a049ce69..8d55db14 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -146,7 +146,7 @@ github.com/aws/aws-sdk-go-v2/service/ssooidc/types
 github.com/aws/aws-sdk-go-v2/service/sts
 github.com/aws/aws-sdk-go-v2/service/sts/internal/endpoints
 github.com/aws/aws-sdk-go-v2/service/sts/types
-# github.com/aws/smithy-go v1.27.7
+# github.com/aws/smithy-go v1.27.8
 ## explicit; go 1.24
 github.com/aws/smithy-go
 github.com/aws/smithy-go/auth