diff --git a/tools/run_tests/run_tests.py b/tools/run_tests/run_tests.py
index 72e3e2a7de6..60db54d5e88 100755
--- a/tools/run_tests/run_tests.py
+++ b/tools/run_tests/run_tests.py
@@ -877,12 +877,14 @@ class PythonLanguage(object):
                     # tested.
                     return (
                         python27_config,
+                        python37_config,
                         python38_config,
                     )
                 else:
                     return (
                         python27_config,
                         python35_config,
+                        python37_config,
                         python38_config,
                     )
         elif args.compiler == 'python2.7':