diff --git a/Dockerfile b/Dockerfile
index 540f34d63..9d7095d52 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 ############# builder
-FROM golang:1.18.1 AS builder
+FROM golang:1.19.2 AS builder
 
 WORKDIR /go/src/github.com/gardener/gardener-extension-networking-calico
 COPY . .
diff --git a/go.mod b/go.mod
index ef1e30f8b..cc7721ac4 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/gardener/gardener-extension-networking-calico
 
-go 1.18
+go 1.19
 
 require (
 	github.com/ahmetb/gen-crd-api-reference-docs v0.2.0
diff --git a/pkg/charts/charts_suite_test.go b/pkg/charts/charts_suite_test.go
index d483d575e..4ba38ab21 100644
--- a/pkg/charts/charts_suite_test.go
+++ b/pkg/charts/charts_suite_test.go
@@ -4,7 +4,7 @@
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
 //
-//      http://www.apache.org/licenses/LICENSE-2.0
+//	http://www.apache.org/licenses/LICENSE-2.0
 //
 // Unless required by applicable law or agreed to in writing, software
 // distributed under the License is distributed on an "AS IS" BASIS,