diff --git a/meson.build b/meson.build
index 8940ca651..f0443bbd1 100644
--- a/meson.build
+++ b/meson.build
@@ -46,6 +46,7 @@
 # in the build directory.
 
 project('lix', 'cpp', 'rust',
+  # NOTE: when bumping this, remember to also bump meson_version in subprojects.
   meson_version : '>=1.5.0',
   version : run_command('bash', '-c', 'echo -n $(jq -r .version < ./version.json)$VERSION_SUFFIX', check : true).stdout().strip(),
   default_options : [
diff --git a/subprojects/lix-clang-tidy/meson.build b/subprojects/lix-clang-tidy/meson.build
index bb09448d5..70dabe6da 100644
--- a/subprojects/lix-clang-tidy/meson.build
+++ b/subprojects/lix-clang-tidy/meson.build
@@ -1,4 +1,5 @@
 project('lix-clang-tidy', ['cpp', 'c'],
+  meson_version : '>=1.5.0',
   version : '0.1',
   default_options : ['warning_level=3', 'cpp_std=c++20']
 )