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index 3cef3e5..3af72e7 100644
--- a/content/posts/diy-uv-pcb-exposure-unit/index.de.md
+++ b/content/posts/diy-uv-pcb-exposure-unit/index.de.md
@@ -3,7 +3,7 @@ title = 'UV-Belichter (LED) aus Marke Eigenbau'
 date = 2025-04-14T08:11:20+02:00
 draft = false
 toc = true
-cover = 'cover.png'
+cover = 'cover.jpg'
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diff --git a/content/posts/diy-uv-pcb-exposure-unit/index.en.md b/content/posts/diy-uv-pcb-exposure-unit/index.en.md
index 2cbea58..18e2a32 100644
--- a/content/posts/diy-uv-pcb-exposure-unit/index.en.md
+++ b/content/posts/diy-uv-pcb-exposure-unit/index.en.md
@@ -3,7 +3,7 @@ title = 'Self-built UV exposure unit (LED)'
 date = 2025-04-14T08:11:20+02:00
 draft = false
 toc = true
-cover = 'cover.png'
+cover = 'cover.jpg'
 +++
 
 
diff --git a/public/de/index.html b/public/de/index.html
index 568dfb5..fd32c38 100644
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@@ -272,7 +272,7 @@
         
 
         
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@@ -251,7 +251,7 @@
         
 
         
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index 489e3ec..606650d 100644
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@@ -251,7 +251,7 @@
         
 
         
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