Number one, new airships would use helium.
If there hadn't been a swastika on the tail, the Hindenburg would have been full of helium. The Germans were master airship pilots, and the Graf Zeppelin's record of safety was the general rule, not the Hindenburg disaster.
Even American airships, helium filled, had problems. Usually weather did in our airships. The Macon's old hangar is a landmark near here. It went down in a storm, as did its sister the Akron.
Modern technology would fix almost all of this.