diff --git a/meson.build b/meson.build
index a33468f..f06e0c0 100644
--- a/meson.build
+++ b/meson.build
@@ -66,7 +66,7 @@ datadir = get_option('datadir')
 gsr_ui_resources_path = join_paths(prefix, datadir, 'gsr-ui')
 
 add_project_arguments('-DGSR_UI_VERSION="' + meson.project_version() + '"', language: ['c', 'cpp'])
-add_project_arguments('-DGSR_FLATPAK_VERSION="5.8.5"', language: ['c', 'cpp'])
+add_project_arguments('-DGSR_FLATPAK_VERSION="5.9.0"', language: ['c', 'cpp'])
 
 executable(
     meson.project_name(),