diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 01e8c74..73baa1f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        go-version: [1.13, 1.14, 1.15]
+        go-version: [1.15, 1.16, 1.x]
     steps:
       - name: Install Go
         uses: actions/setup-go@v1
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 23139f5..166e752 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -12,7 +12,7 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v1
         with:
-          go-version: 1.15
+          go-version: 1.17
 
       - name: Checkout
         uses: actions/checkout@v2
diff --git a/cmd/check_fritz/main.go b/cmd/check_fritz/main.go
index 4fd1f18..40221c5 100644
--- a/cmd/check_fritz/main.go
+++ b/cmd/check_fritz/main.go
@@ -2,9 +2,9 @@ package main
 
 import (
 	"fmt"
-	"os"
-
 	"github.com/urfave/cli/v2"
+	"os"
+	"runtime"
 )
 
 // program version
@@ -67,11 +67,6 @@ func (ai *ArgumentInformation) setDebugMode() {
 	ai.Debug = true
 }
 
-func printVersion() {
-	fmt.Println("check_fritz v" + Version)
-	GlobalReturnCode = exitOk
-}
-
 func checkRequiredFlags(aI *ArgumentInformation) bool {
 	if aI.Hostname == nil || *aI.Hostname == "" {
 		fmt.Println("No hostname")
@@ -194,7 +189,7 @@ func main() {
 		Action:  checkMain,
 		Name:    "check_fritz",
 		Usage:   "Check plugin to monitor a Fritz!Box",
-		Version: Version,
+		Version: fmt.Sprintf("%s/%s", Version, runtime.Version()),
 		Flags: []cli.Flag{
 			&cli.StringFlag{
 				Name:        "hostname",
@@ -294,11 +289,5 @@ METHODS:
 	smart_socketenergy 		Total power consumption of the last year of a socket switch (requires AIN),	
 	smart_status            current smart device status (requires AIN)
 `
-
-	cli.VersionFlag = &cli.BoolFlag{
-		Name: "version", Aliases: []string{"V"},
-		Usage: "print the version",
-	}
-
 	app.Run(os.Args)
 }