diff --git a/go.mod b/go.mod
index 6b9f8be..1236303 100644
--- a/go.mod
+++ b/go.mod
@@ -11,7 +11,7 @@ require (
 	github.com/jinzhu/gorm v1.9.16
 	github.com/joho/godotenv v1.5.1
 	github.com/mediocregopher/radix/v4 v4.1.4
-	github.com/mrz1836/postmark v1.6.2
+	github.com/mrz1836/postmark v1.6.3
 	github.com/pilinux/argon2 v0.8.0
 	github.com/pilinux/crypt v0.0.2
 	github.com/pilinux/libgo v0.0.5
diff --git a/go.sum b/go.sum
index c8a9d95..6303331 100644
--- a/go.sum
+++ b/go.sum
@@ -101,8 +101,8 @@ github.com/modern-go/reflect2 v1.0.2/go.mod h1:yWuevngMOJpCy52FWWMvUC8ws7m/LJsjY
 github.com/montanaflynn/stats v0.0.0-20171201202039-1bf9dbcd8cbe/go.mod h1:wL8QJuTMNUDYhXwkmfOly8iTdp5TEcJFWZD2D7SIkUc=
 github.com/montanaflynn/stats v0.7.1 h1:etflOAAHORrCC44V+aR6Ftzort912ZU+YLiSTuV8eaE=
 github.com/montanaflynn/stats v0.7.1/go.mod h1:etXPPgVO6n31NxCd9KQUMvCM+ve0ruNzt6R8Bnaayow=
-github.com/mrz1836/postmark v1.6.2 h1:QxKCwad4Nxlh81f4YQGXvyd5MF4dV1lgMTAKQZhqPME=
-github.com/mrz1836/postmark v1.6.2/go.mod h1:6z5MxAH00Kj44owtQaryv9Pbqp5OKT3wWcRSydB0p0A=
+github.com/mrz1836/postmark v1.6.3 h1:g5Zv6hGZfqTR79Xb7my5O1aVuiBxWQ0jI2jFzu+Ou9k=
+github.com/mrz1836/postmark v1.6.3/go.mod h1:6z5MxAH00Kj44owtQaryv9Pbqp5OKT3wWcRSydB0p0A=
 github.com/pelletier/go-toml/v2 v2.0.9 h1:uH2qQXheeefCCkuBBSLi7jCiSmj3VRh2+Goq2N7Xxu0=
 github.com/pelletier/go-toml/v2 v2.0.9/go.mod h1:tJU2Z3ZkXwnxa4DPO899bsyIoywizdUvyaeZurnPPDc=
 github.com/pilinux/argon2 v0.8.0 h1:0q4JPxc4esISCInn6W50S3lDKH8ji8soZqSdD0Vuz2I=