diff --git a/go.mod b/go.mod
index 6cf7ae3..f9694f8 100644
--- a/go.mod
+++ b/go.mod
@@ -1,5 +1,5 @@
 module github.com/oe7drt/oe7drt-website
 
-go 1.18
+go 1.19
 
-require github.com/jpanther/congo/v2 v2.4.2 // indirect
+require github.com/jpanther/congo/v2 v2.5.1 // indirect
diff --git a/go.sum b/go.sum
index 6c33523..6d97abd 100644
--- a/go.sum
+++ b/go.sum
@@ -1,6 +1,2 @@
-github.com/jpanther/congo/v2 v2.4.0 h1:0fswnbuH8t0xHdeyLGeMCsTToZF+26btjvEVsAXTiEw=
-github.com/jpanther/congo/v2 v2.4.0/go.mod h1:1S7DRoO1ZYS4YUdFd1LjTkdyjQwsjFWd8TqSfz3Jd+M=
-github.com/jpanther/congo/v2 v2.4.1 h1:F9Nqi08otWCB0fi+ImnHuCnB053S9HullPtF4DsvQVk=
-github.com/jpanther/congo/v2 v2.4.1/go.mod h1:1S7DRoO1ZYS4YUdFd1LjTkdyjQwsjFWd8TqSfz3Jd+M=
-github.com/jpanther/congo/v2 v2.4.2 h1:c+WSf/9Mr+a/bR4w3YteHwnsS5eTWgkU0QC2Mqx9pjc=
-github.com/jpanther/congo/v2 v2.4.2/go.mod h1:1S7DRoO1ZYS4YUdFd1LjTkdyjQwsjFWd8TqSfz3Jd+M=
+github.com/jpanther/congo/v2 v2.5.1 h1:HjpZZAL9lXpY+u8M0y4ZkeUL9Fu255pI4CmWXRn4yWc=
+github.com/jpanther/congo/v2 v2.5.1/go.mod h1:1S7DRoO1ZYS4YUdFd1LjTkdyjQwsjFWd8TqSfz3Jd+M=