diff --git a/pandas/core/frame.py b/pandas/core/frame.py
index a8c4053850548..974d5bc1ff113 100644
--- a/pandas/core/frame.py
+++ b/pandas/core/frame.py
@@ -1670,8 +1670,8 @@ def to_parquet(self, fname, engine='auto', compression='snappy',
             Parquet reader library to use. If 'auto', then the option
             'io.parquet.engine' is used. If 'auto', then the first
             library to be installed is used.
-        compression : {'snappy', 'gzip', 'brotli', 'None'}
-            Name of the compression to use. Use ``None`` for no compression
+        compression : {'snappy', 'gzip', 'brotli', None}, default 'snappy'
+            Name of the compression to use. Use ``None`` for no compression.
         kwargs
             Additional keyword arguments passed to the engine
         """
diff --git a/pandas/io/parquet.py b/pandas/io/parquet.py
index 0c88706a3bec2..f67b03d924d2c 100644
--- a/pandas/io/parquet.py
+++ b/pandas/io/parquet.py
@@ -218,8 +218,8 @@ def to_parquet(df, path, engine='auto', compression='snappy', **kwargs):
         Parquet reader library to use. If 'auto', then the option
         'io.parquet.engine' is used. If 'auto', then the first
         library to be installed is used.
-    compression : {'snappy', 'gzip', 'brotli', 'None'}
-        Name of the compression to use. Use ``None`` for no compression
+    compression : {'snappy', 'gzip', 'brotli', None}, default 'snappy'
+        Name of the compression to use. Use ``None`` for no compression.
     kwargs
         Additional keyword arguments passed to the engine
     """