diff --git a/python-canonicaljson.changes b/python-canonicaljson.changes
index ec466c4..5153515 100644
--- a/python-canonicaljson.changes
+++ b/python-canonicaljson.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Thu Apr 29 11:09:25 UTC 2021 - Oliver Kurz <okurz@suse.com>
+
+- Exclude tests on older SLE+Leap due to "ImportError: cannot import name inf"
+
 -------------------------------------------------------------------
 Tue Sep  8 20:32:44 UTC 2020 - Marcus Rueckert <mrueckert@suse.de>
 
diff --git a/python-canonicaljson.spec b/python-canonicaljson.spec
index 52ad181..54ac5fd 100644
--- a/python-canonicaljson.spec
+++ b/python-canonicaljson.spec
@@ -75,8 +75,12 @@ RFC 7159.
 
 %check
 %if %{with test}
+# exclude tests on older SLE+Leap due to
+# ImportError: cannot import name inf
+%if 0%{?suse_version} > 1500 || 0%{?sle_version} > 150300
 %python_exec -m unittest discover
 %endif
+%endif
 
 %if !%{with test}
 %files %{python_files}