docs: remove obsolete target attribute
diff --git a/docs/install.html b/docs/install.html
index 8ef9822..af7e63b 100644
--- a/docs/install.html
+++ b/docs/install.html
@@ -59,9 +59,9 @@
</p>
<ul>
-<li><a href="http://xorg.freedesktop.org/releases/individual/proto/"
-target="_parent">dri2proto</a> version 2.6 or later
-<li><a href="http://dri.freedesktop.org/libdrm/" target="_parent">libDRM</a>
+<li><a href="http://xorg.freedesktop.org/releases/individual/proto/">
+dri2proto</a> version 2.6 or later
+<li><a href="http://dri.freedesktop.org/libdrm/">libDRM</a>
version 2.4.33 or later
<li>Xorg server version 1.5 or later
<li>Linux 2.6.28 or later