diff --git a/docs/meson.html b/docs/meson.html
index 68f80d6ac4..af109d3d8b 100644
--- a/docs/meson.html
+++ b/docs/meson.html
@@ -24,7 +24,7 @@ for production</strong></p>
 <p>The meson build is tested on Linux, macOS, Cygwin and Haiku, FreeBSD,
 DragonflyBSD, NetBSD, and should work on OpenBSD.</p>
 
-<p><strong>Mesa requires Meson >= 0.45.0 to build.</strong>
+<p><strong>Mesa requires Meson >= 0.46.0 to build.</strong>
 
 Some older versions of meson do not check that they are too old and will error
 out in odd ways.
diff --git a/meson.build b/meson.build
index 1b47587782..cd1d2d2289 100644
--- a/meson.build
+++ b/meson.build
@@ -25,7 +25,7 @@ project(
     [find_program('python', 'python2', 'python3'), 'bin/meson_get_version.py']
   ).stdout(),
   license : 'MIT',
-  meson_version : '>= 0.45',
+  meson_version : '>= 0.46',
   default_options : ['buildtype=debugoptimized', 'b_ndebug=if-release', 'c_std=c99', 'cpp_std=c++11']
 )
 
@@ -709,7 +709,7 @@ if with_platform_haiku
   pre_args += '-DHAVE_HAIKU_PLATFORM'
 endif
 
-prog_python = import('python3').find_python()
+prog_python = import('python').find_installation('python3')
 has_mako = run_command(
   prog_python, '-c',
   '''