diff --git a/test/newtests.jl b/test/newtests.jl
index b92e9ea..659751b 100644
--- a/test/newtests.jl
+++ b/test/newtests.jl
@@ -20,7 +20,7 @@ end
     @test get_gtk_property(frame, :ratio, Float32) == 1.0
     zr[] = (1:20, 9:10)
     @test zr[].currentview.x == 9..10
-    sleep(0.5)  # allow the Gtk event loop to run
+    sleep(2.0)  # allow the Gtk event loop to run (macOS is particularly sensitive to this)
     @test get_gtk_property(frame, :ratio, Float32) ≈ 0.1
     zr[] = (9:10, 1:20)
     sleep(0.5)