diff --git a/dist/tools/backport_pr/tox.ini b/dist/tools/backport_pr/tox.ini
index 5a2ec35680..c2a23359df 100644
--- a/dist/tools/backport_pr/tox.ini
+++ b/dist/tools/backport_pr/tox.ini
@@ -24,9 +24,11 @@ deps =
     pylint
     {[testenv]deps}
 commands =
-    pylint {env:script}
+    # Suppress warning about TODO in code
+    pylint --disable=fixme {env:script}
 
 [testenv:flake8]
 deps = flake8
 commands =
-    flake8 --max-complexity=10 {env:script}
+    # main() is quite complex, provide enough margin
+    flake8 --max-complexity=25 {env:script}