doc/install.texi | 6 +++---

diff --git a/doc/install.texi b/doc/install.texi
index 69db64c15d57841560295ff73a50cb9fca7327edf30228025f41db31284c1c92..27bfb44926613e8183924b085994d10f4a4ead608e9719e38c7a9a2deda0fab7 100644
--- a/doc/install.texi
+++ b/doc/install.texi
@@ -1,9 +1,9 @@
 @node Install
 @unnumbered Install
 
-VoRS is written on @url{https://go.dev/, Go}, but also uses wrapper on
-@url{https://opus-codec.org/, libopus} library. Provided tarballs
-include its source code
+VoRS is written on @url{https://go.dev/, Go} (at least 1.21 version is
+required), but also uses wrapper on @url{https://opus-codec.org/,
+libopus} library. Provided tarballs include its source code
 (@url{https://wiki.hydrogenaud.io/index.php?title=Opus, look} how many
 improvements Opus got over the years) and a fork of the
 @url{https://github.com/hraban/opus, gopkg.in/hraban/opus.v2} with the