diff --git a/backend/internal/server/api/api.go b/backend/internal/server/api/api.go
index 83a9ca8..6f54807 100644
--- a/backend/internal/server/api/api.go
+++ b/backend/internal/server/api/api.go
@@ -332,7 +332,7 @@ func (a *App) getDashboard(w http.ResponseWriter, r *http.Request) {
 			}
 		}
 
-		var dateOfLastUpdate *time.Time = nil
+		var dateOfLastUpdate *time.Time
 		if wasFound {
 			dateOfLastUpdate = &latestBuild.UpdatedAt
 		}
diff --git a/backend/internal/server/webhook/webhook.go b/backend/internal/server/webhook/webhook.go
index 074c974..461ec06 100644
--- a/backend/internal/server/webhook/webhook.go
+++ b/backend/internal/server/webhook/webhook.go
@@ -98,7 +98,7 @@ func (h Handler) Mux() http.Handler {
 }
 
 func (h Handler) exchangeCode(ctx context.Context, code string) (userAccessToken string, err error) {
-	const url = "https://github.com/login/oauth/access_token"
+	const githubAuthURL = "https://github.com/login/oauth/access_token"
 
 	reqBody := map[string]interface{}{
 		"client_id":     h.githubAppClientID,
@@ -110,7 +110,7 @@ func (h Handler) exchangeCode(ctx context.Context, code string) (userAccessToken
 		return "", fmt.Errorf("marshalling request body: %w", err)
 	}
 
-	req, err := http.NewRequestWithContext(ctx, http.MethodPost, url, bytes.NewBuffer(reqBodyBytes))
+	req, err := http.NewRequestWithContext(ctx, http.MethodPost, githubAuthURL, bytes.NewBuffer(reqBodyBytes))
 	if err != nil {
 		return "", fmt.Errorf("creating new request: %w", err)
 	}