diff --git a/go.mod b/go.mod
index 01b1d4b7..05afecf8 100644
--- a/go.mod
+++ b/go.mod
@@ -3,7 +3,7 @@ module aws-sigv4-proxy
 go 1.22.4
 
 require (
-	github.com/aws/aws-sdk-go v1.54.19
+	github.com/aws/aws-sdk-go v1.55.3
 	github.com/sirupsen/logrus v1.9.3
 	github.com/stretchr/testify v1.8.4
 	gopkg.in/alecthomas/kingpin.v2 v2.2.6
diff --git a/go.sum b/go.sum
index e3b6a226..a7a5f9f1 100644
--- a/go.sum
+++ b/go.sum
@@ -2,8 +2,8 @@ github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751 h1:JYp7IbQjafo
 github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
 github.com/alecthomas/units v0.0.0-20231202071711-9a357b53e9c9 h1:ez/4by2iGztzR4L0zgAOR8lTQK9VlyBVVd7G4omaOQs=
 github.com/alecthomas/units v0.0.0-20231202071711-9a357b53e9c9/go.mod h1:OMCwj8VM1Kc9e19TLln2VL61YJF0x1XFtfdL4JdbSyE=
-github.com/aws/aws-sdk-go v1.54.19 h1:tyWV+07jagrNiCcGRzRhdtVjQs7Vy41NwsuOcl0IbVI=
-github.com/aws/aws-sdk-go v1.54.19/go.mod h1:eRwEWoyTWFMVYVQzKMNHWP5/RV4xIUGMQfXQHfHkpNU=
+github.com/aws/aws-sdk-go v1.55.3 h1:0B5hOX+mIx7I5XPOrjrHlKSDQV/+ypFZpIHOx5LOk3E=
+github.com/aws/aws-sdk-go v1.55.3/go.mod h1:eRwEWoyTWFMVYVQzKMNHWP5/RV4xIUGMQfXQHfHkpNU=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 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=
diff --git a/vendor/github.com/aws/aws-sdk-go/aws/endpoints/defaults.go b/vendor/github.com/aws/aws-sdk-go/aws/endpoints/defaults.go
index 84dc7dc0..069debf1 100644
--- a/vendor/github.com/aws/aws-sdk-go/aws/endpoints/defaults.go
+++ b/vendor/github.com/aws/aws-sdk-go/aws/endpoints/defaults.go
@@ -13068,6 +13068,9 @@ var awsPartition = partition{
 				endpointKey{
 					Region: "eu-central-1",
 				}: endpoint{},
+				endpointKey{
+					Region: "eu-central-2",
+				}: endpoint{},
 				endpointKey{
 					Region: "eu-north-1",
 				}: endpoint{},
@@ -22522,6 +22525,9 @@ var awsPartition = partition{
 				}: endpoint{
 					Hostname: "network-firewall-fips.ca-central-1.amazonaws.com",
 				},
+				endpointKey{
+					Region: "ca-west-1",
+				}: endpoint{},
 				endpointKey{
 					Region: "eu-central-1",
 				}: endpoint{},
@@ -24479,6 +24485,14 @@ var awsPartition = partition{
 						Region: "ca-central-1",
 					},
 				},
+				endpointKey{
+					Region: "ca-west-1",
+				}: endpoint{
+					Hostname: "portal.sso.ca-west-1.amazonaws.com",
+					CredentialScope: credentialScope{
+						Region: "ca-west-1",
+					},
+				},
 				endpointKey{
 					Region: "eu-central-1",
 				}: endpoint{
@@ -33621,6 +33635,20 @@ var awsPartition = partition{
 				}: endpoint{},
 			},
 		},
+		"tax": service{
+			PartitionEndpoint: "aws-global",
+			IsRegionalized:    boxedFalse,
+			Endpoints: serviceEndpoints{
+				endpointKey{
+					Region: "aws-global",
+				}: endpoint{
+					Hostname: "tax.us-east-1.amazonaws.com",
+					CredentialScope: credentialScope{
+						Region: "us-east-1",
+					},
+				},
+			},
+		},
 		"textract": service{
 			Endpoints: serviceEndpoints{
 				endpointKey{
@@ -39973,16 +40001,12 @@ var awsusgovPartition = partition{
 			Endpoints: serviceEndpoints{
 				endpointKey{
 					Region: "us-gov-east-1",
-				}: endpoint{
-					Hostname:  "autoscaling-plans.us-gov-east-1.amazonaws.com",
-					Protocols: []string{"http", "https"},
-				},
+				}: endpoint{},
 				endpointKey{
 					Region:  "us-gov-east-1",
 					Variant: fipsVariant,
 				}: endpoint{
-					Hostname:  "autoscaling-plans.us-gov-east-1.amazonaws.com",
-					Protocols: []string{"http", "https"},
+					Hostname: "autoscaling-plans.us-gov-east-1.amazonaws.com",
 				},
 				endpointKey{
 					Region: "us-gov-east-1-fips",
@@ -39994,16 +40018,12 @@ var awsusgovPartition = partition{
 				},
 				endpointKey{
 					Region: "us-gov-west-1",
-				}: endpoint{
-					Hostname:  "autoscaling-plans.us-gov-west-1.amazonaws.com",
-					Protocols: []string{"http", "https"},
-				},
+				}: endpoint{},
 				endpointKey{
 					Region:  "us-gov-west-1",
 					Variant: fipsVariant,
 				}: endpoint{
-					Hostname:  "autoscaling-plans.us-gov-west-1.amazonaws.com",
-					Protocols: []string{"http", "https"},
+					Hostname: "autoscaling-plans.us-gov-west-1.amazonaws.com",
 				},
 				endpointKey{
 					Region: "us-gov-west-1-fips",
@@ -40969,20 +40989,40 @@ var awsusgovPartition = partition{
 		"directconnect": service{
 			Endpoints: serviceEndpoints{
 				endpointKey{
-					Region: "us-gov-east-1",
+					Region: "fips-us-gov-east-1",
 				}: endpoint{
-					Hostname: "directconnect.us-gov-east-1.amazonaws.com",
+					Hostname: "directconnect-fips.us-gov-east-1.amazonaws.com",
 					CredentialScope: credentialScope{
 						Region: "us-gov-east-1",
 					},
+					Deprecated: boxedTrue,
 				},
 				endpointKey{
-					Region: "us-gov-west-1",
+					Region: "fips-us-gov-west-1",
 				}: endpoint{
-					Hostname: "directconnect.us-gov-west-1.amazonaws.com",
+					Hostname: "directconnect-fips.us-gov-west-1.amazonaws.com",
 					CredentialScope: credentialScope{
 						Region: "us-gov-west-1",
 					},
+					Deprecated: boxedTrue,
+				},
+				endpointKey{
+					Region: "us-gov-east-1",
+				}: endpoint{},
+				endpointKey{
+					Region:  "us-gov-east-1",
+					Variant: fipsVariant,
+				}: endpoint{
+					Hostname: "directconnect-fips.us-gov-east-1.amazonaws.com",
+				},
+				endpointKey{
+					Region: "us-gov-west-1",
+				}: endpoint{},
+				endpointKey{
+					Region:  "us-gov-west-1",
+					Variant: fipsVariant,
+				}: endpoint{
+					Hostname: "directconnect-fips.us-gov-west-1.amazonaws.com",
 				},
 			},
 		},
@@ -46372,6 +46412,9 @@ var awsisoPartition = partition{
 				endpointKey{
 					Region: "us-iso-east-1",
 				}: endpoint{},
+				endpointKey{
+					Region: "us-iso-west-1",
+				}: endpoint{},
 			},
 		},
 		"appconfig": service{
@@ -47685,6 +47728,13 @@ var awsisobPartition = partition{
 				}: endpoint{},
 			},
 		},
+		"apigateway": service{
+			Endpoints: serviceEndpoints{
+				endpointKey{
+					Region: "us-isob-east-1",
+				}: endpoint{},
+			},
+		},
 		"appconfig": service{
 			Endpoints: serviceEndpoints{
 				endpointKey{
diff --git a/vendor/github.com/aws/aws-sdk-go/aws/request/waiter.go b/vendor/github.com/aws/aws-sdk-go/aws/request/waiter.go
index 4601f883..992ed046 100644
--- a/vendor/github.com/aws/aws-sdk-go/aws/request/waiter.go
+++ b/vendor/github.com/aws/aws-sdk-go/aws/request/waiter.go
@@ -256,8 +256,17 @@ func (a *WaiterAcceptor) match(name string, l aws.Logger, req *Request, err erro
 		s := a.Expected.(int)
 		result = s == req.HTTPResponse.StatusCode
 	case ErrorWaiterMatch:
-		if aerr, ok := err.(awserr.Error); ok {
-			result = aerr.Code() == a.Expected.(string)
+		switch ex := a.Expected.(type) {
+		case string:
+			if aerr, ok := err.(awserr.Error); ok {
+				result = aerr.Code() == ex
+			}
+		case bool:
+			if ex {
+				result = err != nil
+			} else {
+				result = err == nil
+			}
 		}
 	default:
 		waiterLogf(l, "WARNING: Waiter %s encountered unexpected matcher: %s",
diff --git a/vendor/github.com/aws/aws-sdk-go/aws/version.go b/vendor/github.com/aws/aws-sdk-go/aws/version.go
index b2040b05..514bf3ad 100644
--- a/vendor/github.com/aws/aws-sdk-go/aws/version.go
+++ b/vendor/github.com/aws/aws-sdk-go/aws/version.go
@@ -5,4 +5,4 @@ package aws
 const SDKName = "aws-sdk-go"
 
 // SDKVersion is the version of this SDK
-const SDKVersion = "1.54.19"
+const SDKVersion = "1.55.3"
diff --git a/vendor/modules.txt b/vendor/modules.txt
index 33cafbba..c9a3ab74 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -5,7 +5,7 @@ github.com/alecthomas/template/parse
 # github.com/alecthomas/units v0.0.0-20231202071711-9a357b53e9c9
 ## explicit; go 1.15
 github.com/alecthomas/units
-# github.com/aws/aws-sdk-go v1.54.19
+# github.com/aws/aws-sdk-go v1.55.3
 ## explicit; go 1.19
 github.com/aws/aws-sdk-go/aws
 github.com/aws/aws-sdk-go/aws/auth/bearer