diff --git a/benchmark/k2_trees/test_case.config b/benchmark/k2_trees/test_case.config
index a3e129d93..a84c5f9c0 100644
--- a/benchmark/k2_trees/test_case.config
+++ b/benchmark/k2_trees/test_case.config
@@ -4,4 +4,4 @@
 # (3) LaTeX name
 # (4) Download link (if the test is available online)
 EXAMPLE;../data/example_arcs;examples;http://webdatacommons.org/hyperlinkgraph/data/example_arcs
-HOSTGRAPH;../data/hostgraph.arc;hostgraph;http://users.dcc.uchile.cl/~fmontoto/static/hostgraph.arc.gz
+HOSTGRAPH;../data/hostgraph.arc;hostgraph;https://users.dcc.uchile.cl/~fmontoto/static/hostgraph.arc.gz