diff --git a/README.md b/README.md
index 2ffee361..b8255267 100644
--- a/README.md
+++ b/README.md
@@ -18,7 +18,7 @@ You'll need the following dependencies:
 * libmutter-10-dev (>= 42.0) | libmutter-dev (>= 3.18.3)
 * libxml2-utils
 * meson (>= 0.59.0)
-* valac (>= 0.46.0)
+* valac (>= 0.56.17)
 
 Run `meson build` to configure the build environment. Change to the build directory and run `ninja` to build
 
diff --git a/meson.build b/meson.build
index 58c8062e..f9d47c70 100644
--- a/meson.build
+++ b/meson.build
@@ -14,7 +14,7 @@ cc = meson.get_compiler('c')
 
 gala_version = meson.project_version()
 
-vala_version_required = '0.46.0'
+vala_version_required = '0.56.17'
 vala = meson.get_compiler('vala')
 if not vala.version().version_compare('>= @0@'.format(vala_version_required))
     error('Valac >= @0@ required!'.format(vala_version_required))