diff --git a/README.adoc b/README.adoc
index cfdf328..1a3f94e 100644
--- a/README.adoc
+++ b/README.adoc
@@ -82,6 +82,11 @@ On Windows, `just` can be installed using the https://scoop.sh[Scoop package man
 scoop install just
 ```
 
+=== Arch Linux
+
+On Arch Linux, `just` is packaged as https://aur.archlinux.org/packages/just/[just] in AUR, the https://aur.archlinux.org[Arch User Repository]. Several tools are available to install packages from AUR, including https://github.com/Jguer/yay[yay] and https://github.com/archlinuxfr/yaourt[yaourt].
+
+
 === Cargo
 
 On Windows, Linux, and macOS, `just` can be installed using Cargo, the https://www.rust-lang.org[rust language package manager]. Install Cargo using the instructions https://www.rustup.rs[here], then run:
diff --git a/tests/interrupts.rs b/tests/interrupts.rs
index c94f23e..caddb77 100644
--- a/tests/interrupts.rs
+++ b/tests/interrupts.rs
@@ -46,11 +46,11 @@ fn interrupt_test(justfile: &str) {
 
   let elapsed = start.elapsed();
 
-  if elapsed > Duration::new(2, 500_000_000) {
+  if elapsed > Duration::new(4, 0) {
     panic!("process returned too late: {:?}", elapsed);
   }
 
-  if elapsed < Duration::new(1, 500_000_000) {
+  if elapsed < Duration::new(1, 0) {
     panic!("process returned too early : {:?}", elapsed);
   }