diff --git a/controller/controller.go b/controller/controller.go
index 835ff238..55f0433f 100644
--- a/controller/controller.go
+++ b/controller/controller.go
@@ -112,7 +112,7 @@ func RefreshExtensionsTicker(extensionMapUpdater func()) {
 }
 
 // ExtensionsRouter is the router for /extensions endpoints
-func ExtensionsRouter(extensions extension.Extensions, testRouter bool) chi.Router {
+func ExtensionsRouter(_ extension.Extensions, testRouter bool) chi.Router {
 	if !testRouter {
 		RefreshExtensionsTicker(initExtensionUpdatesFromDynamoDB)
 	}
diff --git a/extension/json.go b/extension/json.go
index 3721e255..c3923b24 100644
--- a/extension/json.go
+++ b/extension/json.go
@@ -59,7 +59,7 @@ func (updateResponse *UpdateResponse) MarshalJSON() ([]byte, error) {
 		app.UpdateCheck = UpdateCheck{Status: GetUpdateStatus(extension)}
 		extensionName := "extension_" + strings.Replace(extension.Version, ".", "_", -1) + ".crx"
 		url := "https://" + GetS3ExtensionBucketHost(extension.ID) + "/release/" + extension.ID + "/" + extensionName
-		diffUrl := "https://" + GetS3ExtensionBucketHost(extension.ID) + "/release/" + extension.ID + "/patches/" + extension.SHA256 + "/"
+		diffURL := "https://" + GetS3ExtensionBucketHost(extension.ID) + "/release/" + extension.ID + "/patches/" + extension.SHA256 + "/"
 		if app.UpdateCheck.Status == "ok" {
 			if app.UpdateCheck.URLs == nil {
 				app.UpdateCheck.URLs = &URLs{
@@ -83,7 +83,7 @@ func (updateResponse *UpdateResponse) MarshalJSON() ([]byte, error) {
 
 			if pInfoFound {
 				app.UpdateCheck.URLs.URLs = append(app.UpdateCheck.URLs.URLs, URL{
-					CodebaseDiff: diffUrl,
+					CodebaseDiff: diffURL,
 				})
 				pkg.NameDiff = patchInfo.Namediff
 				pkg.DiffSHA256 = patchInfo.Hashdiff
diff --git a/extension/xml.go b/extension/xml.go
index e95aadf0..9860ec3e 100644
--- a/extension/xml.go
+++ b/extension/xml.go
@@ -7,7 +7,7 @@ import (
 )
 
 // MarshalXML encodes the extension list into response XML
-func (updateResponse *UpdateResponse) MarshalXML(e *xml.Encoder, start xml.StartElement) error {
+func (updateResponse *UpdateResponse) MarshalXML(e *xml.Encoder, _ xml.StartElement) error {
 	type URL struct {
 		XMLName  xml.Name `xml:"url"`
 		Codebase string   `xml:"codebase,attr"`
@@ -83,7 +83,7 @@ func (updateResponse *UpdateResponse) MarshalXML(e *xml.Encoder, start xml.Start
 }
 
 // MarshalXML encodes the extension list into response XML
-func (updateResponse *WebStoreUpdateResponse) MarshalXML(e *xml.Encoder, start xml.StartElement) error {
+func (updateResponse *WebStoreUpdateResponse) MarshalXML(e *xml.Encoder, _ xml.StartElement) error {
 	type UpdateCheck struct {
 		XMLName  xml.Name `xml:"updatecheck"`
 		Status   string   `xml:"status,attr"`
diff --git a/server/server_test.go b/server/server_test.go
index 53a6edb7..dd859315 100644
--- a/server/server_test.go
+++ b/server/server_test.go
@@ -93,7 +93,7 @@ func testCall(t *testing.T, server *httptest.Server, method string, contentType
 	req.Header.Add("Content-Type", contentType)
 
 	client := &http.Client{
-		CheckRedirect: func(req *http.Request, via []*http.Request) error {
+		CheckRedirect: func(_ *http.Request, _ []*http.Request) error {
 			return http.ErrUseLastResponse
 		},
 	}
@@ -563,7 +563,7 @@ func TestPrintExtensions(t *testing.T) {
 	req, err := http.NewRequest(http.MethodGet, testURL, bytes.NewBuffer([]byte("")))
 	assert.Nil(t, err)
 	client := &http.Client{
-		CheckRedirect: func(req *http.Request, via []*http.Request) error {
+		CheckRedirect: func(_ *http.Request, _ []*http.Request) error {
 			return http.ErrUseLastResponse
 		},
 	}