diff --git a/python/run-tests.py b/python/run-tests.py
index 3539c76b911a4..d57185555d870 100755
--- a/python/run-tests.py
+++ b/python/run-tests.py
@@ -114,7 +114,7 @@ def run_individual_python_test(test_name, pyspark_python):
 
 
 def get_default_python_executables():
-    python_execs = [x for x in ["python2.7", "python3.4", "pypy"] if which(x)]
+    python_execs = [x for x in ["python2.7", "python3.6", "pypy"] if which(x)]
     if "python2.7" not in python_execs:
         LOGGER.warning("Not testing against `python2.7` because it could not be found; falling"
                        " back to `python` instead")