diff --git a/tests/test_utils_response.py b/tests/test_utils_response.py
index 869665406..6c882b386 100644
--- a/tests/test_utils_response.py
+++ b/tests/test_utils_response.py
@@ -238,7 +238,7 @@ PRE_XTRACTMIME_SCENARIOS = (
                 'headers': Headers(
                     {
                         'Content-Disposition': [
-                            f'attachment; filename="a.xml"',
+                            'attachment; filename="a.xml"',
                         ]
                     }
                 ),
@@ -254,7 +254,7 @@ PRE_XTRACTMIME_SCENARIOS = (
                 'headers': Headers(
                     {
                         'Content-Disposition': [
-                            f'attachment; filename="a.html"',
+                            'attachment; filename="a.html"',
                         ],
                         "Content-Type": "text/xml",
                     }
diff --git a/tox.ini b/tox.ini
index e1c52be61..348f298c1 100644
--- a/tox.ini
+++ b/tox.ini
@@ -4,7 +4,7 @@
 # and then run "tox" from this directory.
 
 [tox]
-envlist = security,flake8,py
+envlist = security,flake8,pylint,py
 minversion = 1.7.0
 
 [testenv]