diff --git a/tests/conftest.py b/tests/conftest.py
index 91f1283aa2..4c379cadba 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -1,4 +1,5 @@
 import socket
+import sys
 
 import pytest
 
@@ -10,3 +11,9 @@ def free_port():
     port_number = s.getsockname()[1]
     s.close()
     return port_number
+
+
+if sys.version_info < (3, 8):
+    # Ignore unused Textual snapshots on Python 3.7
+    def pytest_configure(config):
+        config.option.warn_unused_snapshots = True