diff --git a/.travis.yml b/.travis.yml
index 777e2b7cc..20fcba839 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -37,8 +37,9 @@ jobs:
     - python: 3.6
       env: TOXENV=py36-djmaster-sqlite-coverage
 
+    # Explicitly test (older) pytest 5.3.
     - python: 3.5
-      env: TOXENV=py35-dj110-postgres-coverage
+      env: TOXENV=py35-dj110-postgres-pytest53-coverage
       services:
         - postgresql
 
diff --git a/tox.ini b/tox.ini
index 84bbb9859..f1ddf2beb 100644
--- a/tox.ini
+++ b/tox.ini
@@ -29,6 +29,7 @@ deps =
 
     pytest41: pytest>=4.1,<4.2
     pytest41: attrs==17.4.0
+    pytest53: pytest>=5.3,<5.4
     xdist: pytest-xdist>=1.15
 
 setenv =