diff --git a/tests/conftest.py b/tests/conftest.py
index f750766..16b9e41 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -206,8 +206,8 @@ def number():
             def test_failed():
             >       assert "emoji" == "hello world"
             E       AssertionError: assert 'emoji' == 'hello world'
-            E         - emoji
-            E         + hello world
+            E         - hello world
+            E         + emoji
 
             test_emoji_tests.py:5: AssertionError
             ```
@@ -288,8 +288,8 @@ def number():
             def test_failed():
             >       assert "emoji" == "hello world"
             E       AssertionError: assert 'emoji' == 'hello world'
-            E         - emoji
-            E         + hello world
+            E         - hello world
+            E         + emoji
 
             test_emoji_tests.py:5: AssertionError
             ```
diff --git a/tox.ini b/tox.ini
index a4211aa..187d873 100644
--- a/tox.ini
+++ b/tox.ini
@@ -4,6 +4,7 @@ envlist = py36,py37,{py36,py37}-emoji,mypy,flake8
 [testenv]
 deps =
     freezegun
+    pytest>=5.4.0
     emoji: pytest-emoji
 commands = pytest -v {posargs:tests}