5 files changed, 5 insertions, 5 deletions
diff --git a/tests/basics/bytearray_slice_assign.py b/tests/basics/bytearray_slice_assign.py
index 48f5938a5..7f7d1d119 100644
--- a/tests/basics/bytearray_slice_assign.py
+++ b/tests/basics/bytearray_slice_assign.py
@@ -4,7 +4,7 @@ except TypeError:
     print("SKIP")
     raise SystemExit
 
-# test slices; only 2 argument version supported by Micro Python at the moment
+# test slices; only 2 argument version supported by MicroPython at the moment
 x = bytearray(range(10))
 
 # Assignment
diff --git a/tests/basics/list_slice_assign.py b/tests/basics/list_slice_assign.py
index 1ad1ef27c..885615717 100644
--- a/tests/basics/list_slice_assign.py
+++ b/tests/basics/list_slice_assign.py
@@ -1,4 +1,4 @@
-# test slices; only 2 argument version supported by Micro Python at the moment
+# test slices; only 2 argument version supported by MicroPython at the moment
 x = list(range(10))
 
 # Assignment
diff --git a/tests/io/stringio1.py b/tests/io/stringio1.py
index fa50f282e..9f7c1e44e 100644
--- a/tests/io/stringio1.py
+++ b/tests/io/stringio1.py
@@ -36,7 +36,7 @@ print(a.read())
 a = io.StringIO()
 a.close()
 for f in [a.read, a.getvalue, lambda:a.write("")]:
-    # CPython throws for operations on closed I/O, micropython makes
+    # CPython throws for operations on closed I/O, MicroPython makes
     # the underlying string empty unless MICROPY_CPYTHON_COMPAT defined
     try:
         f()
diff --git a/tests/run-bench-tests b/tests/run-bench-tests
index 1e5e7804b..d48b4b7ec 100755
--- a/tests/run-bench-tests
+++ b/tests/run-bench-tests
@@ -26,7 +26,7 @@ def run_tests(pyb, test_dict):
         print(base_test + ":")
         for test_file in tests:
 
-            # run Micro Python
+            # run MicroPython
             if pyb is None:
                 # run on PC
                 try:
diff --git a/tests/run-tests b/tests/run-tests
index bd4a1363c..f9c26283d 100755
--- a/tests/run-tests
+++ b/tests/run-tests
@@ -388,7 +388,7 @@ def run_tests(pyb, tests, args, base_path="."):
         if args.write_exp:
             continue
 
-        # run Micro Python
+        # run MicroPython
         output_mupy = run_micropython(pyb, args, test_file)
 
         if output_mupy == b'SKIP\n':