diff --git a/meson.build b/meson.build
index 094910d..1009f60 100644
--- a/meson.build
+++ b/meson.build
@@ -1,6 +1,6 @@
 project('gst_pipeline_studio',
           version: '0.3.2',
-    meson_version: '>= 0.50.0',
+    meson_version: '>= 0.63.0',
   default_options: [ 'warning_level=2',
                    ],
           license: 'GPL-3.0-or-later',
@@ -36,7 +36,7 @@ localedir = prefix / get_option('localedir')
 datadir = prefix / get_option('datadir')
 pkgdatadir = datadir / meson.project_name()
 iconsdir = datadir / 'icons'
-podir = meson.source_root () / 'po'
+podir = meson.project_source_root () / 'po'
 gettext_package = meson.project_name()
 base_id = 'org.freedesktop.dabrain34.GstPipelineStudio'
 
@@ -70,8 +70,8 @@ subdir('po')
 
 meson.add_dist_script(
   'build-aux/dist-vendor.sh',
-  meson.source_root(),
-  join_paths(meson.build_root(), 'meson-dist', meson.project_name() + '-' + version)
+  meson.project_source_root(),
+  join_paths(meson.project_build_root(), 'meson-dist', meson.project_name() + '-' + version)
 )
 if host_system == 'linux'
   meson.add_install_script('build-aux/meson/postinstall.py')
diff --git a/src/meson.build b/src/meson.build
index a26b4c5..aadec57 100644
--- a/src/meson.build
+++ b/src/meson.build
@@ -9,7 +9,7 @@ configure_file(
 )
 
 # Copy the config.rs output to the source directory.
-run_command(python3, '-c', 'import shutil; shutil.copyfile("@0@", "@1@")'.format(join_paths(meson.build_root(), 'src', 'config.rs'), join_paths(meson.source_root(), 'src', 'config.rs')))
+run_command(python3, '-c', 'import shutil; shutil.copyfile("@0@", "@1@")'.format(join_paths(meson.project_build_root(), 'src', 'config.rs'), join_paths(meson.project_source_root(), 'src', 'config.rs')))
 
 rust_sources = files(
   'gps/player.rs',
@@ -38,7 +38,7 @@ rust_sources = files(
 
 sources = [cargo_sources, rust_sources]
 
-cargo_script = find_program(join_paths(meson.source_root(), 'build-aux/cargo.py'))
+cargo_script = find_program(join_paths(meson.project_source_root(), 'build-aux/cargo.py'))
 
 app_name = meson.project_name()
 if host_system == 'windows'
@@ -55,8 +55,8 @@ cargo_release = custom_target(
   install_dir: get_option('bindir'),
   command: [
     cargo_script,
-    meson.build_root(),
-    meson.source_root(),
+    meson.project_build_root(),
+    meson.project_source_root(),
     '@OUTPUT@',
     get_option('buildtype'),
     app_name,