diff --git a/Makefile b/Makefile
index 77b9395e..4478b495 100644
--- a/Makefile
+++ b/Makefile
@@ -5,7 +5,7 @@ DOCKER_PASSWORD=
 DOCKER_REGISTRY=thecodingmachine
 GOTENBERG_USER_GID=1001
 GOTENBERG_USER_UID=1001
-GOLANGCI_LINT_VERSION=1.25.1
+GOLANGCI_LINT_VERSION=1.27.0
 CODE_COVERAGE=0
 TINI_VERSION=0.19.0
 MAXIMUM_WAIT_TIMEOUT=30.0
@@ -19,6 +19,7 @@ DISABLE_UNOCONV=0
 LOG_LEVEL=INFO
 ROOT_PATH=/
 DEFAULT_GOOGLE_CHROME_RPCC_BUFFER_SIZE=1048576
+GOOGLE_CHROME_IGNORE_CERTIFICATE_ERRORS=0
 
 # build the base Docker image.
 base:
@@ -57,7 +58,7 @@ image:
 
 # start the API using previously built Docker image.
 gotenberg:
-	docker run -it --rm -e MAXIMUM_WAIT_TIMEOUT=$(MAXIMUM_WAIT_TIMEOUT) -e MAXIMUM_WAIT_DELAY=$(MAXIMUM_WAIT_DELAY) -e MAXIMUM_WEBHOOK_URL_TIMEOUT=$(MAXIMUM_WEBHOOK_URL_TIMEOUT) -e DEFAULT_WEBHOOK_URL_TIMEOUT=$(DEFAULT_WEBHOOK_URL_TIMEOUT) -e MAXIMUM_WEBHOOK_URL_TIMEOUT=$(MAXIMUM_WEBHOOK_URL_TIMEOUT) -e DEFAULT_LISTEN_PORT=$(DEFAULT_LISTEN_PORT) -e DISABLE_GOOGLE_CHROME=$(DISABLE_GOOGLE_CHROME) -e DISABLE_UNOCONV=$(DISABLE_UNOCONV) -e LOG_LEVEL=$(LOG_LEVEL) -e ROOT_PATH=$(ROOT_PATH) -e DEFAULT_GOOGLE_CHROME_RPCC_BUFFER_SIZE=$(DEFAULT_GOOGLE_CHROME_RPCC_BUFFER_SIZE)  -p "$(DEFAULT_LISTEN_PORT):$(DEFAULT_LISTEN_PORT)" $(DOCKER_REGISTRY)/gotenberg:$(VERSION)
+	docker run -it --rm -e MAXIMUM_WAIT_TIMEOUT=$(MAXIMUM_WAIT_TIMEOUT) -e MAXIMUM_WAIT_DELAY=$(MAXIMUM_WAIT_DELAY) -e MAXIMUM_WEBHOOK_URL_TIMEOUT=$(MAXIMUM_WEBHOOK_URL_TIMEOUT) -e DEFAULT_WEBHOOK_URL_TIMEOUT=$(DEFAULT_WEBHOOK_URL_TIMEOUT) -e MAXIMUM_WEBHOOK_URL_TIMEOUT=$(MAXIMUM_WEBHOOK_URL_TIMEOUT) -e DEFAULT_LISTEN_PORT=$(DEFAULT_LISTEN_PORT) -e DISABLE_GOOGLE_CHROME=$(DISABLE_GOOGLE_CHROME) -e DISABLE_UNOCONV=$(DISABLE_UNOCONV) -e LOG_LEVEL=$(LOG_LEVEL) -e ROOT_PATH=$(ROOT_PATH) -e DEFAULT_GOOGLE_CHROME_RPCC_BUFFER_SIZE=$(DEFAULT_GOOGLE_CHROME_RPCC_BUFFER_SIZE) -e GOOGLE_CHROME_IGNORE_CERTIFICATE_ERRORS=$(GOOGLE_CHROME_IGNORE_CERTIFICATE_ERRORS)  -p "$(DEFAULT_LISTEN_PORT):$(DEFAULT_LISTEN_PORT)" $(DOCKER_REGISTRY)/gotenberg:$(VERSION)
 
 # publish Gotenberg images according to version.
 publish:
diff --git a/build/lint/Dockerfile b/build/lint/Dockerfile
index 4b24276d..0abf3718 100644
--- a/build/lint/Dockerfile
+++ b/build/lint/Dockerfile
@@ -19,4 +19,4 @@ COPY . .
 RUN go mod download &&\
     go mod verify
 
-CMD ["golangci-lint", "run" ,"--tests=false", "--enable-all", "--disable=dupl", "--disable=funlen", "--disable=wsl", "--disable=gocognit", "--disable=gomnd" ]
\ No newline at end of file
+CMD ["golangci-lint", "run" ,"--tests=false", "--enable-all", "--disable=dupl", "--disable=funlen", "--disable=wsl", "--disable=gocognit", "--disable=gomnd", "--disable=goimports" ]
\ No newline at end of file
diff --git a/cmd/gotenberg/main.go b/cmd/gotenberg/main.go
index 6f0135f2..f6c0d3fd 100644
--- a/cmd/gotenberg/main.go
+++ b/cmd/gotenberg/main.go
@@ -1,6 +1,7 @@
 package main
 
 import (
+	"errors"
 	"fmt"
 	"net/http"
 	"os"
@@ -38,7 +39,7 @@ func main() {
 	go func() {
 		systemLogger.InfoOpf(op, "http server started on port '%d'", config.DefaultListenPort())
 		if err := srv.Start(fmt.Sprintf(":%d", config.DefaultListenPort())); err != nil {
-			if err != http.ErrServerClosed {
+			if errors.Is(err, http.ErrServerClosed) {
 				systemLogger.FatalOp(op, err)
 			}
 		}
diff --git a/go.mod b/go.mod
index 0bd876df..3dab12b8 100644
--- a/go.mod
+++ b/go.mod
@@ -15,12 +15,12 @@ require (
 	github.com/russross/blackfriday/v2 v2.0.1
 	github.com/shurcooL/sanitized_anchor_name v1.0.0 // indirect
 	github.com/sirupsen/logrus v1.6.0
-	github.com/stretchr/testify v1.6.0
+	github.com/stretchr/testify v1.6.1
 	golang.org/x/crypto v0.0.0-20200604202706-70a84ac30bf9 // indirect
 	golang.org/x/net v0.0.0-20200602114024-627f9648deb9 // indirect
 	golang.org/x/sync v0.0.0-20200317015054-43a5402ce75a
 	golang.org/x/sys v0.0.0-20200602225109-6fdc65e7d980 // indirect
 	golang.org/x/text v0.3.2
 	gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f // indirect
-	gopkg.in/yaml.v3 v3.0.0-20200603094226-e3079894b1e8 // indirect
+	gopkg.in/yaml.v3 v3.0.0-20200605160147-a5ece683394c // indirect
 )
diff --git a/go.sum b/go.sum
index 9d11994f..d333c492 100644
--- a/go.sum
+++ b/go.sum
@@ -47,8 +47,8 @@ github.com/sirupsen/logrus v1.6.0/go.mod h1:7uNnSEd1DgxDLC74fIahvMZmmYsHGZGEOFrf
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
 github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
-github.com/stretchr/testify v1.6.0 h1:jlIyCplCJFULU/01vCkhKuTyc3OorI3bJFuw6obfgho=
-github.com/stretchr/testify v1.6.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+github.com/stretchr/testify v1.6.1 h1:hDPOHmpOpP40lSULcqw7IrRb/u7w6RpDC9399XyoNd0=
+github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/valyala/bytebufferpool v1.0.0 h1:GqA5TC/0021Y/b9FG4Oi9Mr3q7XYx6KllzawFIhcdPw=
 github.com/valyala/bytebufferpool v1.0.0/go.mod h1:6bBcMArwyJ5K/AmCkWv1jt77kVWyCJ6HpOuEn7z0Csc=
 github.com/valyala/fasttemplate v1.0.1/go.mod h1:UQGH1tvbgY+Nz5t2n7tXsz52dQxojPUpymEIMZ47gx8=
@@ -60,6 +60,7 @@ golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8U
 golang.org/x/crypto v0.0.0-20200221231518-2aa609cf4a9d/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/crypto v0.0.0-20200604202706-70a84ac30bf9 h1:vEg9joUBmeBcK9iSJftGNf3coIG4HqZElCPehJsfAYM=
 golang.org/x/crypto v0.0.0-20200604202706-70a84ac30bf9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
+golang.org/x/mod v0.2.0 h1:KU7oHjnv3XNWfa5COkzUifxZmxp1TyI7ImMXqFxLwvQ=
 golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/net v0.0.0-20181220203305-927f97764cc3/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
@@ -86,6 +87,7 @@ golang.org/x/text v0.3.2 h1:tW2bmiBqwgJj/UpqtC8EpXEZVYOwU0yG4iWbprSVAcs=
 golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
+golang.org/x/tools v0.0.0-20200330183114-f8bfb4ee3038 h1:FUufmZ17Dp41BwLDPii6R8vp0QtIquTiDIxcbFlY1ek=
 golang.org/x/tools v0.0.0-20200330183114-f8bfb4ee3038/go.mod h1:Sl4aGygMT6LrqrWclx+PTx3U+LnKx/seiNR+3G19Ar8=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
@@ -96,5 +98,5 @@ gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f h1:BLraFXnmrev5lT+xlilqcH8X
 gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
-gopkg.in/yaml.v3 v3.0.0-20200603094226-e3079894b1e8 h1:jL/vaozO53FMfZLySWM+4nulF3gQEC6q5jH90LPomDo=
-gopkg.in/yaml.v3 v3.0.0-20200603094226-e3079894b1e8/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.0-20200605160147-a5ece683394c h1:grhR+C34yXImVGp7EzNk+DTIk+323eIUWOmEevy6bDo=
+gopkg.in/yaml.v3 v3.0.0-20200605160147-a5ece683394c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
diff --git a/internal/app/xhttp/handler.go b/internal/app/xhttp/handler.go
index ea442685..454676a7 100644
--- a/internal/app/xhttp/handler.go
+++ b/internal/app/xhttp/handler.go
@@ -308,7 +308,7 @@ func convertAsync(ctx context.Context, p printer.Printer, filename, fpath string
 		return xerror.New(op, err)
 	}
 	go func() {
-		defer r.Close() // nolint: errcheck
+		defer r.Close()
 		if err := p.Print(fpath); err != nil {
 			xerr := xerror.New(op, err)
 			logger.ErrorOp(xerror.Op(xerr), xerr)
@@ -320,7 +320,7 @@ func convertAsync(ctx context.Context, p printer.Printer, filename, fpath string
 			logger.ErrorOp(xerror.Op(xerr), xerr)
 			return
 		}
-		defer f.Close() // nolint: errcheck
+		defer f.Close()
 		logger.DebugOpf(
 			op,
 			"preparing to send result file '%s' to '%s'...",
@@ -360,7 +360,7 @@ func convertAsync(ctx context.Context, p printer.Printer, filename, fpath string
 			logger.ErrorOp(xerror.Op(xerr), xerr)
 			return
 		}
-		defer resp.Body.Close() // nolint: errcheck
+		defer resp.Body.Close()
 		logger.DebugOpf(
 			op,
 			"result file '%s' sent to '%s'",
diff --git a/internal/app/xhttp/pkg/context/context.go b/internal/app/xhttp/pkg/context/context.go
index dee4d670..908db2d7 100644
--- a/internal/app/xhttp/pkg/context/context.go
+++ b/internal/app/xhttp/pkg/context/context.go
@@ -106,7 +106,7 @@ func (ctx *Context) WithResource(directoryName string) error {
 				if err != nil {
 					return r, err
 				}
-				defer in.Close() // nolint: errcheck
+				defer in.Close()
 				// avoid directory traversal.
 				filename := filepath.Base(fh.Filename)
 				if err := r.WithFile(filename, in); err != nil {
diff --git a/internal/app/xhttp/pkg/resource/file.go b/internal/app/xhttp/pkg/resource/file.go
index 6777d482..5526cf90 100644
--- a/internal/app/xhttp/pkg/resource/file.go
+++ b/internal/app/xhttp/pkg/resource/file.go
@@ -24,7 +24,7 @@ func (f file) write(in io.Reader) error {
 		if err != nil {
 			return err
 		}
-		defer out.Close() // nolint: errcheck
+		defer out.Close()
 		if err := out.Chmod(0600); err != nil {
 			return err
 		}
diff --git a/internal/pkg/conf/conf.go b/internal/pkg/conf/conf.go
index 4ad311ba..7e974309 100644
--- a/internal/pkg/conf/conf.go
+++ b/internal/pkg/conf/conf.go
@@ -289,5 +289,5 @@ func (c Config) DefaultGoogleChromeRpccBufferSize() int64 {
 }
 
 func (c Config) GoogleChromeIgnoreCertificateErrors() bool {
-	return c.urlIgnoreCertificateErrors
+	return c.googleChromeIgnoreCertificateErrors
 }
diff --git a/internal/pkg/conf/conf_test.go b/internal/pkg/conf/conf_test.go
index 1fbb1cf7..a8d2e6b4 100644
--- a/internal/pkg/conf/conf_test.go
+++ b/internal/pkg/conf/conf_test.go
@@ -395,7 +395,7 @@ func TestGoogleChromeIgnoreCertificateErrorsFromEnv(t *testing.T) {
 	assert.Equal(t, expected, result)
 	os.Unsetenv(GoogleChromeIgnoreCertificateErrorsEnvVar)
 	// GOOGLE_CHROME_IGNORE_CERTIFICATE_ERRORS correctly set to false.
-	os.Setenv(GooleChromeIgnoreCertificateErrorsEnvVar, "0")
+	os.Setenv(GoogleChromeIgnoreCertificateErrorsEnvVar, "0")
 	expected = DefaultConfig()
 	expected.googleChromeIgnoreCertificateErrors = false
 	result, err = FromEnv()
diff --git a/internal/pkg/printer/chrome.go b/internal/pkg/printer/chrome.go
index 718d6f7b..5fe3ca73 100644
--- a/internal/pkg/printer/chrome.go
+++ b/internal/pkg/printer/chrome.go
@@ -94,7 +94,7 @@ func (p chromePrinter) Print(destination string) error {
 		if err != nil {
 			return err
 		}
-		defer devtConn.Close() // nolint: errcheck
+		defer devtConn.Close()
 		// create a new CDP Client that uses conn.
 		devtClient := cdp.NewClient(devtConn)
 		createBrowserContextArgs := target.NewCreateBrowserContextArgs()
@@ -136,7 +136,7 @@ func (p chromePrinter) Print(destination string) error {
 		if err != nil {
 			return err
 		}
-		defer newContextConn.Close() // nolint: errcheck
+		defer newContextConn.Close()
 		// create a new CDP Client that uses newContextConn.
 		targetClient := cdp.NewClient(newContextConn)
 		/*
@@ -314,22 +314,22 @@ func (p chromePrinter) listenEvents(ctx context.Context, client *cdp.Client) err
 		if err != nil {
 			return err
 		}
-		defer domContentEventFired.Close() // nolint: errcheck
+		defer domContentEventFired.Close()
 		loadEventFired, err := client.Page.LoadEventFired(ctx)
 		if err != nil {
 			return err
 		}
-		defer loadEventFired.Close() // nolint: errcheck
+		defer loadEventFired.Close()
 		lifecycleEvent, err := client.Page.LifecycleEvent(ctx)
 		if err != nil {
 			return err
 		}
-		defer lifecycleEvent.Close() // nolint: errcheck
+		defer lifecycleEvent.Close()
 		loadingFinished, err := client.Network.LoadingFinished(ctx)
 		if err != nil {
 			return err
 		}
-		defer loadingFinished.Close() // nolint: errcheck
+		defer loadingFinished.Close()
 		if _, err := client.Page.Navigate(ctx, page.NewNavigateArgs(p.url)); err != nil {
 			return err
 		}
diff --git a/internal/pkg/xexec/xexec.go b/internal/pkg/xexec/xexec.go
index 6ff7c28d..31dc7fe7 100644
--- a/internal/pkg/xexec/xexec.go
+++ b/internal/pkg/xexec/xexec.go
@@ -139,7 +139,7 @@ func logCommandOutput(logger xlog.Logger, reader io.ReadCloser, outputType strin
 	}
 	op := buf.String()
 	r := bufio.NewReader(reader)
-	defer reader.Close() // nolint: errcheck
+	defer reader.Close()
 	for {
 		line, _, err := r.ReadLine()
 		if err != nil {