diff --git a/docs/INSTALL.rst b/docs/INSTALL.rst
index 9f0f02b..dd394ec 100644
--- a/docs/INSTALL.rst
+++ b/docs/INSTALL.rst
@@ -23,7 +23,7 @@
 - Fedora >= 29
 - Gentoo Linux
 - Raspberry Pi OS (formerly Raspbian) >= 2019-06-20
-- FreeBSD >= 12.0
+- FreeBSD >= 12.2
 
 Prerequisites
 -------------
@@ -123,7 +123,7 @@
 
   .. code-block:: sh
 
-    sudo pkg install doxygen graphviz py37-sphinx
+    sudo pkg install doxygen graphviz py39-sphinx
 
 Build
 -----