diff --git a/.goreleaser.yml b/.goreleaser.yml
index 7a34bdc9..16ee277d 100644
--- a/.goreleaser.yml
+++ b/.goreleaser.yml
@@ -1,5 +1,3 @@
-env:
-  - GO111MODULE=on
 before:
   hooks:
     - make clean
diff --git a/Makefile b/Makefile
index 16af9e5f..c4653ef5 100644
--- a/Makefile
+++ b/Makefile
@@ -12,7 +12,7 @@ export DOCKER_BUILDKIT = 1
 
 .PHONY: nginx-prometheus-exporter
 nginx-prometheus-exporter:
-	GO111MODULE=on CGO_ENABLED=0 go build -trimpath -ldflags "-s -w -X main.version=$(VERSION) -X main.commit=$(GIT_COMMIT) -X main.date=$(DATE)" -o nginx-prometheus-exporter
+	CGO_ENABLED=0 go build -trimpath -ldflags "-s -w -X main.version=$(VERSION) -X main.commit=$(GIT_COMMIT) -X main.date=$(DATE)" -o nginx-prometheus-exporter
 
 .PHONY: lint
 lint:
@@ -20,7 +20,7 @@ lint:
 
 .PHONY: test
 test:
-	GO111MODULE=on go test ./...
+	go test ./...
 
 .PHONY: container
 container:
diff --git a/build/Dockerfile b/build/Dockerfile
index ab0fe7fe..dc54d2eb 100644
--- a/build/Dockerfile
+++ b/build/Dockerfile
@@ -12,7 +12,7 @@ RUN go mod download
 COPY *.go ./
 COPY collector ./collector
 COPY client ./client
-RUN GO111MODULE=on CGO_ENABLED=0 GOOS=linux GOARCH=$TARGETARCH go build -trimpath -a -ldflags "-s -w -X main.version=${VERSION} -X main.commit=${GIT_COMMIT} -X main.date=${DATE}" -o nginx-prometheus-exporter .
+RUN CGO_ENABLED=0 GOOS=linux GOARCH=$TARGETARCH go build -trimpath -a -ldflags "-s -w -X main.version=${VERSION} -X main.commit=${GIT_COMMIT} -X main.date=${DATE}" -o nginx-prometheus-exporter .
 
 
 FROM scratch as intermediate
diff --git a/client/nginx.go b/client/nginx.go
index c186634b..01a66ebc 100644
--- a/client/nginx.go
+++ b/client/nginx.go
@@ -2,7 +2,7 @@ package client
 
 import (
 	"fmt"
-	"io/ioutil"
+	"io"
 	"net/http"
 	"strconv"
 	"strings"
@@ -53,7 +53,7 @@ func (client *NginxClient) GetStubStats() (*StubStats, error) {
 		return nil, fmt.Errorf("expected %v response, got %v", http.StatusOK, resp.StatusCode)
 	}
 
-	body, err := ioutil.ReadAll(resp.Body)
+	body, err := io.ReadAll(resp.Body)
 	if err != nil {
 		return nil, fmt.Errorf("failed to read the response body: %v", err)
 	}
diff --git a/exporter.go b/exporter.go
index 50271baa..251a31cc 100644
--- a/exporter.go
+++ b/exporter.go
@@ -6,7 +6,6 @@ import (
 	"crypto/x509"
 	"flag"
 	"fmt"
-	"io/ioutil"
 	"log"
 	"net"
 	"net/http"
@@ -327,7 +326,7 @@ func main() {
 
 	sslConfig := &tls.Config{InsecureSkipVerify: !*sslVerify}
 	if *sslCaCert != "" {
-		caCert, err := ioutil.ReadFile(*sslCaCert)
+		caCert, err := os.ReadFile(*sslCaCert)
 		if err != nil {
 			log.Fatalf("Loading CA cert failed: %v", err)
 		}