diff --git a/x11/library/libtxc-dxtn/pspec.xml b/x11/library/libtxc-dxtn/pspec.xml
index 529fa4fb58..fd978285da 100644
--- a/x11/library/libtxc-dxtn/pspec.xml
+++ b/x11/library/libtxc-dxtn/pspec.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" ?>
-<!DOCTYPE PISI SYSTEM "http://www.pisilinux.org/projeler/pisi/pisi-spec.dtd">
+<!DOCTYPE PISI SYSTEM "https://www.pisilinux.org/projeler/pisi/pisi-spec.dtd">
 <PISI>
     <Source>
         <Name>libtxc-dxtn</Name>
@@ -84,4 +84,4 @@
             <Email>marcin@pisilinux.org</Email>
         </Update>
     </History>
-</PISI>
\ No newline at end of file
+</PISI>