diff --git a/go.mod b/go.mod
index cd90082..80af609 100644
--- a/go.mod
+++ b/go.mod
@@ -3,7 +3,7 @@ module github.com/ccremer/fronius-exporter
 go 1.16
 
 require (
-	github.com/knadh/koanf v1.4.0
+	github.com/knadh/koanf v1.4.1
 	github.com/prometheus/client_golang v1.12.1
 	github.com/sirupsen/logrus v1.8.1
 	github.com/spf13/pflag v1.0.5
diff --git a/go.sum b/go.sum
index 2ba0700..e63bade 100644
--- a/go.sum
+++ b/go.sum
@@ -180,8 +180,8 @@ github.com/jstemmer/go-junit-report v0.9.1/go.mod h1:Brl9GWCQeLvo8nXZwPNNblvFj/X
 github.com/julienschmidt/httprouter v1.2.0/go.mod h1:SYymIcj16QtmaHHD7aYtjjsJG7VTCxuUUipMqKk8s4w=
 github.com/julienschmidt/httprouter v1.3.0/go.mod h1:JR6WtHb+2LUe8TCKY3cZOxFyyO8IZAc4RVcycCCAKdM=
 github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck=
-github.com/knadh/koanf v1.4.0 h1:/k0Bh49SqLyLNfte9r6cvuZWrApOQhglOmhIU3L/zDw=
-github.com/knadh/koanf v1.4.0/go.mod h1:1cfH5223ZeZUOs8FU2UdTmaNfHpqgtjV0+NHjRO43gs=
+github.com/knadh/koanf v1.4.1 h1:Z0VGW/uo8NJmjd+L1Dc3S5frq6c62w5xQ9Yf4Mg3wFQ=
+github.com/knadh/koanf v1.4.1/go.mod h1:1cfH5223ZeZUOs8FU2UdTmaNfHpqgtjV0+NHjRO43gs=
 github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
 github.com/konsorten/go-windows-terminal-sequences v1.0.3/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
 github.com/kr/logfmt v0.0.0-20140226030751-b84e30acd515/go.mod h1:+0opPa2QZZtGFBFZlji/RkVcI2GknAs/DXo4wKdlNEc=