diff --git a/go.mod b/go.mod
index d9badb5f..11ecfed2 100644
--- a/go.mod
+++ b/go.mod
@@ -6,7 +6,7 @@ toolchain go1.21.3
 
 require (
 	github.com/Hsn723/certspotter-client v1.1.0
-	github.com/aws/aws-sdk-go v1.50.12
+	github.com/aws/aws-sdk-go v1.50.13
 	github.com/cybozu-go/log v1.7.0
 	github.com/emersion/go-sasl v0.0.0-20231106173351-e73c9f7bad43
 	github.com/emersion/go-smtp v0.20.2
diff --git a/go.sum b/go.sum
index 80792c14..b38f8a97 100644
--- a/go.sum
+++ b/go.sum
@@ -5,8 +5,8 @@ github.com/armon/go-socks5 v0.0.0-20160902184237-e75332964ef5 h1:0CwZNZbxp69SHPd
 github.com/armon/go-socks5 v0.0.0-20160902184237-e75332964ef5/go.mod h1:wHh0iHkYZB8zMSxRWpUBQtwG5a7fFgvEO+odwuTv2gs=
 github.com/asaskevich/govalidator v0.0.0-20230301143203-a9d515a09cc2 h1:DklsrG3dyBCFEj5IhUbnKptjxatkF07cF2ak3yi77so=
 github.com/asaskevich/govalidator v0.0.0-20230301143203-a9d515a09cc2/go.mod h1:WaHUgvxTVq04UNunO+XhnAqY/wQc+bxr74GqbsZ/Jqw=
-github.com/aws/aws-sdk-go v1.50.12 h1:Gc6QS4Ys++cWSl63U+HyPbKeLVcoOvi6veayhcipPac=
-github.com/aws/aws-sdk-go v1.50.12/go.mod h1:LF8svs817+Nz+DmiMQKTO3ubZ/6IaTpq3TjupRn3Eqk=
+github.com/aws/aws-sdk-go v1.50.13 h1:yeXram2g7q8uKkQkAEeZyk9FmPzxI4UpGwAZGZtEGmM=
+github.com/aws/aws-sdk-go v1.50.13/go.mod h1:LF8svs817+Nz+DmiMQKTO3ubZ/6IaTpq3TjupRn3Eqk=
 github.com/bgentry/speakeasy v0.1.0/go.mod h1:+zsyZBPWlz7T6j88CTgSN5bM796AkVf0kBD4zp0CCIs=
 github.com/boombuler/barcode v1.0.1-0.20190219062509-6c824513bacc h1:biVzkmvwrH8WK8raXaxBx6fRVTlJILwEwQGL1I/ByEI=
 github.com/boombuler/barcode v1.0.1-0.20190219062509-6c824513bacc/go.mod h1:paBWMcWSl3LHKBqUq+rly7CNSldXjb2rDl3JlRe0mD8=