diff --git a/MozillaFirefox-branding-openSUSE.changes b/MozillaFirefox-branding-openSUSE.changes
index f59091a..9c081e2 100644
--- a/MozillaFirefox-branding-openSUSE.changes
+++ b/MozillaFirefox-branding-openSUSE.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Fri Sep 24 04:12:31 UTC 2021 - Andreas Stieger <andreas.stieger@gmx.de>
+
+- use HTTPS for software search plugin
+
 -------------------------------------------------------------------
 Thu Mar 19 19:55:14 UTC 2020 - Stasiek Michalski <stasiek@michalski.cc>
 
diff --git a/distribution.ini.in b/distribution.ini.in
index cd65f89..c5ff85a 100644
--- a/distribution.ini.in
+++ b/distribution.ini.in
@@ -53,5 +53,5 @@ item.6.iconData=data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACAAAAAgCAMAAABEpI
 
 item.7.title=Planet openSUSE
 item.7.type=livemark
-item.7.siteLink=http://planet.opensuse.org
-item.7.feedLink=http://planet.opensuse.org/en/rss20.xml
+item.7.siteLink=https://planet.opensuse.org
+item.7.feedLink=https://planet.opensuse.org/en/rss20.xml
diff --git a/firefox-esr-branding-openSUSE.changes b/firefox-esr-branding-openSUSE.changes
index f59091a..9c081e2 100644
--- a/firefox-esr-branding-openSUSE.changes
+++ b/firefox-esr-branding-openSUSE.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Fri Sep 24 04:12:31 UTC 2021 - Andreas Stieger <andreas.stieger@gmx.de>
+
+- use HTTPS for software search plugin
+
 -------------------------------------------------------------------
 Thu Mar 19 19:55:14 UTC 2020 - Stasiek Michalski <stasiek@michalski.cc>
 
diff --git a/opensuse-software.xml.in b/opensuse-software.xml.in
index 0909fa6..da8e3e1 100644
--- a/opensuse-software.xml.in
+++ b/opensuse-software.xml.in
@@ -3,7 +3,7 @@
 <Description>Search for openSUSE packages</Description>
 <InputEncoding>utf-8</InputEncoding>
 <Image width="16" height="16">data:image/png;base64,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</Image>
-<Url type="text/html" method="GET" template="http://software.opensuse.org/search">
+<Url type="text/html" method="GET" template="https://software.opensuse.org/search">
   <Param name="p" value="1"/>
   <Param name="baseproject" value="openSUSE:%PRJNAME%"/>
   <Param name="q" value="{searchTerms}"/>