diff --git a/docs/build.rst b/docs/build.rst
index 059140087..57f8b081d 100644
--- a/docs/build.rst
+++ b/docs/build.rst
@@ -29,7 +29,7 @@ Dependencies
 
 Run-time dependencies:
 
-* ``python`` >= 3.6
+* ``python`` >= 3.8
 * ``harfbuzz`` >= 2.2.0
 * ``zlib``
 * ``libpng``