diff --git a/.gitignore b/.gitignore
index de0bac9..586a1b9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,5 @@
 /bin/
 /obj/
 /lib/
+/alire/
+alire.lock
diff --git a/alire.toml b/alire.toml
index 5aec974..d732874 100644
--- a/alire.toml
+++ b/alire.toml
@@ -12,3 +12,5 @@ licenses = "CECILL-2.1"
 
 project-files = ["lib_uxstrings1.gpr"]
 
+[[depends-on]]
+gnat = ">=2020"