diff --git a/test/dsp.jl b/test/dsp.jl
index e1a9ee650..ced0c8273 100644
--- a/test/dsp.jl
+++ b/test/dsp.jl
@@ -1,4 +1,4 @@
-# This file is a part of Julia. License is MIT: http://julialang.org/license
+# This file is a part of Julia. License is MIT: https://julialang.org/license
 
 # Filter
 b = [1., 2., 3., 4.]