diff --git a/Dockerfile b/Dockerfile
index 0afd49b0..542191e5 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.20
+FROM alpine:3.21
 
 RUN apk add --no-cache ikiwiki git
 COPY . /build
diff --git a/blog/nicos-porsche-taycan-experience-part-8-power-system-failure.mdwn b/blog/nicos-porsche-taycan-experience-part-8-power-system-failure.mdwn
index 19108237..4591d11d 100644
--- a/blog/nicos-porsche-taycan-experience-part-8-power-system-failure.mdwn
+++ b/blog/nicos-porsche-taycan-experience-part-8-power-system-failure.mdwn
@@ -113,7 +113,7 @@ If that was the first failure, I think I'd have been a bit mad. But
 being one in a long streak of failures, I can only reason that the
 build quality of the Porsche Taycan is poor. It's repeated failures of
 all sorts of systems make it the car with the worst reliability that
-drove or know of.
+I drove or know of.
 
 
 [[!tag porsche car]]
diff --git a/blog/nicos-porsche-taycan-experience-part-9-broken-sport-sound.mdwn b/blog/nicos-porsche-taycan-experience-part-9-broken-sport-sound.mdwn
new file mode 100644
index 00000000..a2d25b09
--- /dev/null
+++ b/blog/nicos-porsche-taycan-experience-part-9-broken-sport-sound.mdwn
@@ -0,0 +1,52 @@
+[[!meta title="Nico's Porsche Taycan Experience - Broken Sport Sound"]]
+
+## Introduction
+
+This article is part of the series of
+[Nico's Porsche Taycan Experience](/blog/nicos-porsche-taycan-experience/).
+
+## Background - the Porsche Sport Sound
+
+Now this is a funny experience. Maybe because it is very ridiculous,
+or because it is minor or because it is so absurd that Dali could not
+have painted it better.
+
+Now, before going into what is broken, let's first look into, what
+this is supposed to be.
+
+The Taycan has something called a Porsche Sport Sound which is a
+glorified name for making sound in the inside and outside when
+accelerating. It is an optional feature of the car and can be turned
+on and off.
+
+Most EVs (probably with the exception of Tesla) in Europe
+have some warning sound when rolling at lower speeds
+so that people notice them.
+
+The Taycan also has that, but when enabling the sport sound, the
+exterior sound is changed and interior sound is activated.
+
+This way you get a bit of acoustic feedback when accelerating.
+
+## Broken Porsche Sport Sound
+
+So how can this break? Here is how it manifests itself:
+
+* When you accelerate, the sounds gets louder, more intense (that is
+  correct)
+* However in my case, when you accelerate a bit stronger, there is a
+  strong clangour in the sound. Like a broken speaker...
+
+The broken sports sound has been reported to the
+The  [Porsche Center
+OZS](https://dealer.porsche.com/ch/obererzuerichsee/de-CH)
+on **2024-06-03** and has not been solved as of **2025-05-24**.
+
+While this is a sound problem and sound problems can be excluded by
+the warranty, the main function of the feature is to produce sound, so
+I guess that this has actually to be covered under warranty.
+
+The last update I received was in June 2025 that the Porsche Center
+OZS cannot reproduce the issue anymore.
+
+[[!tag porsche car]]
diff --git a/blog/nicos-porsche-taycan-experience.mdwn b/blog/nicos-porsche-taycan-experience.mdwn
index 44271392..8621b883 100644
--- a/blog/nicos-porsche-taycan-experience.mdwn
+++ b/blog/nicos-porsche-taycan-experience.mdwn
@@ -58,6 +58,9 @@ Now some of these really look like design bugs, whereas the
 seems more to be a regular defect. And to be fair, probably the
 most severe one you can fear when having an EV.
 
+There are however also less severe things that can break on the
+Taycan, such as the [funny sport sound feature](/blog/nicos-porsche-taycan-experience-part-9-broken-sport-sound).
+
 More to come soon...
 
 ## List of Articles
@@ -74,9 +77,12 @@ For easier access:
   wheels](/blog/nicos-porsche-taycan-experience-part-5-ticktack-wheels)
 * [Part 6 - Loud fan](/blog/nicos-porsche-taycan-experience-part-6-loud-fan)
 * [Part 7 - Water in the car](/blog/nicos-porsche-taycan-experience-part-7-water-in-the-car)
-* [Part 8 - Power System Failure](/blog/nicos-porsche-taycan-experience-part-8-power-system-failure)
+* [Part 8 - Power System
+  Failure](/blog/nicos-porsche-taycan-experience-part-8-power-system-failure)
+* [Part 9 - Broken Sport Sound
+  ](/blog/nicos-porsche-taycan-experience-part-9-broken-sport-sound)
 * [The key battery replacement](/blog/nicos-porsche-taycan-experience-key-battery-replacement)
-* Ongoing discussions with Porsche
+* Current status: ongoing discussions with Porsche
 
 
 [[!tag porsche car]]