diff --git a/.github/workflows/golangci-lint.yml b/.github/workflows/golangci-lint.yml
index c3047c5..bb9bf6e 100644
--- a/.github/workflows/golangci-lint.yml
+++ b/.github/workflows/golangci-lint.yml
@@ -15,4 +15,4 @@ jobs:
       - name: golangci-lint
         uses: golangci/golangci-lint-action@v4
         with:
-          version: v1.54
+          version: v1.56.2
diff --git a/.golangci.yml b/.golangci.yml
index b724f41..0cace13 100644
--- a/.golangci.yml
+++ b/.golangci.yml
@@ -28,11 +28,20 @@ linters:
      - tagliatelle
      - varnamelen
      - wrapcheck
+     - golint # deprecated
+     - nosnakecase # deprecated
+     - scopelint # deprecated
+     - ifshort # deprecated
+     - interfacer # deprecated
+     - structcheck # deprecated
+     - maligned # deprecated
+     - varcheck # deprecated
+     - deadcode # deprecated
+     - goconst # not needed in our case
+     - perfsprint # not needed in our case
 linters-settings:
    funlen:
      ignore-comments: true
      lines: 75
-   estif:
-     min-complexity: 4
-   maligned:
-     suggest-new: true
+   nestif:
+     min-complexity: 5
diff --git a/go.mod b/go.mod
index a1a5915..6c46b66 100644
--- a/go.mod
+++ b/go.mod
@@ -16,5 +16,7 @@ require (
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/mattn/go-isatty v0.0.16 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
-	golang.org/x/sys v0.0.0-20220811171246-fbc7d0a398ab // indirect
+	golang.org/x/mod v0.16.0 // indirect
+	golang.org/x/sys v0.18.0 // indirect
+	golang.org/x/tools v0.19.0 // indirect
 )
diff --git a/go.sum b/go.sum
index 2adc4a6..415b252 100644
--- a/go.sum
+++ b/go.sum
@@ -19,9 +19,15 @@ github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+
 github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/stretchr/testify v1.9.0 h1:HtqpIVDClZ4nwg75+f6Lvsy/wHu+3BoSGCbBAcpTsTg=
 github.com/stretchr/testify v1.9.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
+golang.org/x/mod v0.16.0 h1:QX4fJ0Rr5cPQCF7O9lh9Se4pmwfwskqZfq5moyldzic=
+golang.org/x/mod v0.16.0/go.mod h1:hTbmBsO62+eylJbnUtE2MGJUyE7QWk4xUqPFrRgJ+7c=
 golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220811171246-fbc7d0a398ab h1:2QkjZIsXupsJbJIdSjjUOgWK3aEtzyuh2mPt3l/CkeU=
 golang.org/x/sys v0.0.0-20220811171246-fbc7d0a398ab/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.18.0 h1:DBdB3niSjOA/O0blCZBqDefyWNYveAYMNF1Wum0DYQ4=
+golang.org/x/sys v0.18.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/tools v0.19.0 h1:tfGCXNR1OsFG+sVdLAitlpjAvD/I6dHDKnYrpEZUHkw=
+golang.org/x/tools v0.19.0/go.mod h1:qoJWxmGSIBmAeriMx19ogtrEPrGtDbPK634QFIcLAhc=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
diff --git a/internal/obfuscate/obfuscate.go b/internal/obfuscate/obfuscate.go
index 55df85b..26c75db 100644
--- a/internal/obfuscate/obfuscate.go
+++ b/internal/obfuscate/obfuscate.go
@@ -147,6 +147,7 @@ func (o *Obfuscator) ProcessReader(r io.Reader) (count uint, out bytes.Buffer, e
 				ending = string(r) + ending
 				return true
 			}
+
 			return false
 		})
 
diff --git a/modules/icinga2/collector.go b/modules/icinga2/collector.go
index 88a2ba7..5fbd713 100644
--- a/modules/icinga2/collector.go
+++ b/modules/icinga2/collector.go
@@ -36,16 +36,16 @@ var detailedFiles = []string{
 }
 
 var commands = map[string][]string{
-	"version.txt":           {"icinga2", "-V"},
-	"config-check.txt":      {"icinga2", "daemon", "-C"},
-	"objects-zones.txt":     {"icinga2", "object", "list", "--type", "Zone"},
-	"objects-endpoints.txt": {"icinga2", "object", "list", "--type", "Endpoint"},
-	"variables.txt":         {"icinga2", "variable", "list"},
-	"features.txt":          {"icinga2", "feature", "list"},
-	"user-icinga.txt":       {"id", "icinga"},
-	"user-nagios.txt":       {"id", "nagios"},
-	"icinga2-api-stage-directories.txt": {"ls", "-ld" , "/var/lib/icinga2/api/packages/_api/*/"},
-	"director-api-stage-directories.txt": {"ls", "-ld" , "/var/lib/icinga2/api/packages/director/*/"},
+	"version.txt":                        {"icinga2", "-V"},
+	"config-check.txt":                   {"icinga2", "daemon", "-C"},
+	"objects-zones.txt":                  {"icinga2", "object", "list", "--type", "Zone"},
+	"objects-endpoints.txt":              {"icinga2", "object", "list", "--type", "Endpoint"},
+	"variables.txt":                      {"icinga2", "variable", "list"},
+	"features.txt":                       {"icinga2", "feature", "list"},
+	"user-icinga.txt":                    {"id", "icinga"},
+	"user-nagios.txt":                    {"id", "nagios"},
+	"icinga2-api-stage-directories.txt":  {"ls", "-ld", "/var/lib/icinga2/api/packages/_api/*/"},
+	"director-api-stage-directories.txt": {"ls", "-ld", "/var/lib/icinga2/api/packages/director/*/"},
 }
 
 var detailedCommands = map[string][]string{