diff --git a/go.mod b/go.mod
index 5e19293..7454731 100644
--- a/go.mod
+++ b/go.mod
@@ -4,7 +4,7 @@ go 1.26
 
 require (
 	github.com/aws/aws-lambda-go v1.54.0
-	github.com/aws/aws-sdk-go-v2 v1.42.0
+	github.com/aws/aws-sdk-go-v2 v1.42.1
 	github.com/aws/aws-sdk-go-v2/config v1.32.25
 	github.com/aws/aws-sdk-go-v2/service/codedeploy v1.36.4
 )
@@ -21,5 +21,5 @@ require (
 	github.com/aws/aws-sdk-go-v2/service/sso v1.31.3 // indirect
 	github.com/aws/aws-sdk-go-v2/service/ssooidc v1.36.6 // indirect
 	github.com/aws/aws-sdk-go-v2/service/sts v1.43.3 // indirect
-	github.com/aws/smithy-go v1.27.1 // indirect
+	github.com/aws/smithy-go v1.27.3 // indirect
 )
diff --git a/go.sum b/go.sum
index 523a5cf..82a8df4 100644
--- a/go.sum
+++ b/go.sum
@@ -1,7 +1,7 @@
 github.com/aws/aws-lambda-go v1.54.0 h1:EGYpdyRGF88xszqlGcBewz811mJeRS+maNlLZXFheII=
 github.com/aws/aws-lambda-go v1.54.0/go.mod h1:dpMpZgvWx5vuQJfBt0zqBha60q7Dd7RfgJv23DymV8A=
-github.com/aws/aws-sdk-go-v2 v1.42.0 h1:XvXMJTkFQtpBKIWZnmr9ZEOc2InWM2yldjXEJ/bymhA=
-github.com/aws/aws-sdk-go-v2 v1.42.0/go.mod h1:27+ACypSLljLAEKsCYOmrjKh83vuTRkuAe9Uv/3A4bg=
+github.com/aws/aws-sdk-go-v2 v1.42.1 h1:9eOTgu1z/dVtYpNZ3/8/XbbaX0x/BqE3HUzAzs6K0ek=
+github.com/aws/aws-sdk-go-v2 v1.42.1/go.mod h1:5pKeft2eJj+gElQ38Jqg4ibCqh+/AK33/0X3hip7IjM=
 github.com/aws/aws-sdk-go-v2/config v1.32.25 h1:ACCejvStYoilgwrfegSt5ZntCbPrk52qfwyNcnl3omM=
 github.com/aws/aws-sdk-go-v2/config v1.32.25/go.mod h1:LJyU8sDRbXUxFn8xMJIGP+v9QYYwveNLI8a/giAOiAs=
 github.com/aws/aws-sdk-go-v2/credentials v1.19.24 h1:2hQqYCV9yqyePQ9o6dCrZc/zO8U3TwPr9mIKlZnPu/I=
@@ -28,8 +28,8 @@ github.com/aws/aws-sdk-go-v2/service/ssooidc v1.36.6 h1:yLr03zQE/5Eu5l3QU0Si+xMb
 github.com/aws/aws-sdk-go-v2/service/ssooidc v1.36.6/go.mod h1:Q5N6icH+KJZDLh+ESNwzdv6cZ6vLFF/egy3IOxWhmz4=
 github.com/aws/aws-sdk-go-v2/service/sts v1.43.3 h1:VrIhKRCSK1umelSgB9RghvA9RTUYeQffyAS5ApXehNI=
 github.com/aws/aws-sdk-go-v2/service/sts v1.43.3/go.mod h1:r8wkDOuLaaMFqFiYAb8dGY2A3gJCOujMc6CFOVC4Zhc=
-github.com/aws/smithy-go v1.27.1 h1:4T340VFndXtADGF52gYa1POyL7s9E4Z1OeZ1hCscIw8=
-github.com/aws/smithy-go v1.27.1/go.mod h1:YE2RhdIuDbA5E5bTdciG9KrW3+TiEONeUWCqxX9i1Fc=
+github.com/aws/smithy-go v1.27.3 h1:F3Zb497UhhskkfpJmfkXswyo+t0sh9OTBnIHjogWbVY=
+github.com/aws/smithy-go v1.27.3/go.mod h1:YE2RhdIuDbA5E5bTdciG9KrW3+TiEONeUWCqxX9i1Fc=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
diff --git a/vendor/github.com/aws/aws-sdk-go-v2/aws/go_module_metadata.go b/vendor/github.com/aws/aws-sdk-go-v2/aws/go_module_metadata.go
index 46cb77c..92732c3 100644
--- a/vendor/github.com/aws/aws-sdk-go-v2/aws/go_module_metadata.go
+++ b/vendor/github.com/aws/aws-sdk-go-v2/aws/go_module_metadata.go
@@ -3,4 +3,4 @@
 package aws
 
 // goModuleVersion is the tagged release for this module
-const goModuleVersion = "1.42.0"
+const goModuleVersion = "1.42.1"
diff --git a/vendor/github.com/aws/smithy-go/CHANGELOG.md b/vendor/github.com/aws/smithy-go/CHANGELOG.md
index 6ff611a..1c96bba 100644
--- a/vendor/github.com/aws/smithy-go/CHANGELOG.md
+++ b/vendor/github.com/aws/smithy-go/CHANGELOG.md
@@ -1,3 +1,21 @@
+# Release (2026-06-26)
+
+## General Highlights
+* **Dependency Update**: Updated to the latest SDK module versions
+
+## Module Highlights
+* `github.com/aws/smithy-go`: v1.27.3
+  * **Bug Fix**: Fix bug in JSON doc encoder and endpoint host label format validation
+
+# Release (2026-06-05)
+
+## General Highlights
+* **Dependency Update**: Updated to the latest SDK module versions
+
+## Module Highlights
+* `github.com/aws/smithy-go`: v1.27.2
+  * **Bug Fix**: Fix incorrect serialization of unions in CBOR-based protocols.
+
 # Release (2026-06-04)
 
 ## General Highlights
diff --git a/vendor/github.com/aws/smithy-go/encoding/json/value.go b/vendor/github.com/aws/smithy-go/encoding/json/value.go
index b41ff1e..eac49c4 100644
--- a/vendor/github.com/aws/smithy-go/encoding/json/value.go
+++ b/vendor/github.com/aws/smithy-go/encoding/json/value.go
@@ -106,6 +106,11 @@ func (jv Value) BigInteger(v *big.Int) {
 
 // BigDecimal encodes v as JSON value
 func (jv Value) BigDecimal(v *big.Float) {
+	if v.Sign() == 0 && v.Signbit() {
+		// Preserve negative zero sign which Int64() would lose.
+		jv.w.Write([]byte("-0"))
+		return
+	}
 	if i, accuracy := v.Int64(); accuracy == big.Exact {
 		jv.Long(i)
 		return
diff --git a/vendor/github.com/aws/smithy-go/endpoints/private/rulesfn/uri.go b/vendor/github.com/aws/smithy-go/endpoints/private/rulesfn/uri.go
index 0c11541..68828db 100644
--- a/vendor/github.com/aws/smithy-go/endpoints/private/rulesfn/uri.go
+++ b/vendor/github.com/aws/smithy-go/endpoints/private/rulesfn/uri.go
@@ -27,6 +27,9 @@ func IsValidHostLabel(input string, allowSubDomains bool) bool {
 		if !smithyhttp.ValidHostLabel(label) {
 			return false
 		}
+		if label[0] == '-' || label[len(label)-1] == '-' {
+			return false
+		}
 	}
 
 	return true
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 ba81f77..c9230c6 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 = "1.27.1"
+const goModuleVersion = "1.27.3"
diff --git a/vendor/github.com/aws/smithy-go/transport/http/host.go b/vendor/github.com/aws/smithy-go/transport/http/host.go
index db9801b..b504a45 100644
--- a/vendor/github.com/aws/smithy-go/transport/http/host.go
+++ b/vendor/github.com/aws/smithy-go/transport/http/host.go
@@ -69,7 +69,7 @@ func ValidPortNumber(port string) bool {
 	return true
 }
 
-// ValidHostLabel returns whether the label is a valid RFC 3986 host label.
+// ValidHostLabel returns whether the label is a valid RFC 952/1123 host label.
 func ValidHostLabel(label string) bool {
 	if l := len(label); l == 0 || l > 63 {
 		return false
diff --git a/vendor/modules.txt b/vendor/modules.txt
index 7fc2a54..8d1bc0f 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -4,7 +4,7 @@ github.com/aws/aws-lambda-go/lambda
 github.com/aws/aws-lambda-go/lambda/handlertrace
 github.com/aws/aws-lambda-go/lambda/messages
 github.com/aws/aws-lambda-go/lambdacontext
-# github.com/aws/aws-sdk-go-v2 v1.42.0
+# github.com/aws/aws-sdk-go-v2 v1.42.1
 ## explicit; go 1.24
 github.com/aws/aws-sdk-go-v2/aws
 github.com/aws/aws-sdk-go-v2/aws/defaults
@@ -89,7 +89,7 @@ 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 v1.27.1
+# github.com/aws/smithy-go v1.27.3
 ## explicit; go 1.24
 github.com/aws/smithy-go
 github.com/aws/smithy-go/auth