diff --git a/content/static/images/pentacast-quadratic.png b/content/static/images/pentacast-quadratic.png
new file mode 100644
index 000000000..60101917c
Binary files /dev/null and b/content/static/images/pentacast-quadratic.png differ
diff --git a/content/static/images/pentamusic-quadratic.png b/content/static/images/pentamusic-quadratic.png
new file mode 100644
index 000000000..49e2a5e7a
Binary files /dev/null and b/content/static/images/pentamusic-quadratic.png differ
diff --git a/content/static/images/pentaradio-quadratic.png b/content/static/images/pentaradio-quadratic.png
new file mode 100644
index 000000000..b75f4f79a
Binary files /dev/null and b/content/static/images/pentaradio-quadratic.png differ
diff --git a/xsl/podcast.xsl b/xsl/podcast.xsl
index 5dec955dd..84aaf2c72 100644
--- a/xsl/podcast.xsl
+++ b/xsl/podcast.xsl
@@ -36,14 +36,14 @@
             <copyright>http://creativecommons.org/licenses/by-sa/2.0/de/</copyright>
 	    <image>
 	      <title>Pentaradio</title>
-	      <url><xsl:value-of select="$baseurl"/>images/pentaradio.png</url>
+	      <url><xsl:value-of select="$baseurl"/>images/pentaradio-quadratic.png</url>
 	      <link><xsl:value-of select="$baseurl"/>radio.html</link>
 	    </image>
             <itunes:subtitle>Die drei Podcasts vom CCC Dresden</itunes:subtitle>
             <itunes:summary>
 	      Enthält Podcasts von Pentaradio, Pentacast und Pentamusic
             </itunes:summary>
-            <itunes:image href="{$baseurl}images/pentaradio.png" />
+            <itunes:image href="{$baseurl}images/pentaradio-quadratic.png" />
             <itunes:category text="Society &amp; Culture"/>
             <itunes:category text="Technology">
               <itunes:category text="Tech News"/>
@@ -58,14 +58,14 @@
             <copyright>http://creativecommons.org/licenses/by-sa/2.0/de/</copyright>
 	    <image>
 	      <title>Pentaradio</title>
-	      <url><xsl:value-of select="$baseurl"/>images/pentaradio.png</url>
+	      <url><xsl:value-of select="$baseurl"/>images/pentaradio-quadratic.png</url>
 	      <link><xsl:value-of select="$baseurl"/>radio.html</link>
 	    </image>
             <itunes:subtitle>Radio vom CCC Dresden</itunes:subtitle>
             <itunes:summary>
               Pentaradio sind die Sendungen des Chaos Computer Club Dresden auf coloRadio, bestehend aus einem informativen Rahmenprogramm und Beiträgen zu einem sendungsspezifischen Thema.
             </itunes:summary>
-            <itunes:image href="{$baseurl}images/pentaradio.png" />
+            <itunes:image href="{$baseurl}images/pentaradio-quadratic.png" />
             <itunes:category text="Society &amp; Culture"/>
             <itunes:category text="Technology">
               <itunes:category text="Tech News"/>
@@ -80,7 +80,7 @@
             <copyright>http://creativecommons.org/licenses/by-sa/2.0/de/</copyright>
 	    <image>
 	      <title>Pentacast</title>
-	      <url><xsl:value-of select="$baseurl"/>images/pentacast.png</url>
+	      <url><xsl:value-of select="$baseurl"/>images/pentacast-quadratic.png</url>
 	      <link><xsl:value-of select="$baseurl"/>podcast.html</link>
 	    </image>
             <itunes:subtitle>Podcasts vom CCC Dresden</itunes:subtitle>
@@ -88,7 +88,7 @@
               Pentacast sind themenspezifische Sendungen des Chaos
               Computer Club Dresden.
             </itunes:summary>
-            <itunes:image href="{$baseurl}images/pentacast.png" />
+            <itunes:image href="{$baseurl}images/pentacast-quadratic.png" />
             <itunes:category text="Society &amp; Culture"/>
             <itunes:category text="Technology"/>
             <atom:link rel="payment" href="https://flattr.com/thing/51037/Pentacast" type="text/html"/>
@@ -101,7 +101,7 @@
             <copyright>http://creativecommons.org/licenses/by-sa/2.0/de/</copyright>
 	    <image>
 	      <title>Pentamusic</title>
-	      <url><xsl:value-of select="$baseurl"/>images/pentamusic.png</url>
+	      <url><xsl:value-of select="$baseurl"/>images/pentamusic-quadratic.png</url>
 	      <link><xsl:value-of select="$baseurl"/>pentamusic.html</link>
 	    </image>
             <itunes:subtitle>Musikvorstellungen vom CCC Dresden</itunes:subtitle>
@@ -110,7 +110,7 @@
               Mikro zu holen um diese einer breiteren Öffentlichkeit
               bekannt zu machen.
             </itunes:summary>
-            <itunes:image href="{$baseurl}images/pentamusic.png" />
+            <itunes:image href="{$baseurl}images/pentamusic-quadratic.png" />
             <itunes:category text="Society &amp; Culture"/>
             <itunes:category text="Music"/>
             <atom:link rel="payment" href="https://flattr.com/thing/51039/Pentamusic" type="text/html"/>