diff --git a/storages/backends/s3boto.py b/storages/backends/s3boto.py
index a329a7616..7e3a7ef19 100644
--- a/storages/backends/s3boto.py
+++ b/storages/backends/s3boto.py
@@ -356,7 +356,7 @@ def _compress_content(self, content):
         #  This means each time a file is compressed it changes even if the other contents don't change
         #  For S3 this defeats detection of changes using MD5 sums on gzipped files
         #  Fixing the mtime at 0.0 at compression time avoids this problem
-        zfile = GzipFile(mode='wb', compresslevel=6, fileobj=zbuf, mtime=0.0)
+        zfile = GzipFile(mode='wb', fileobj=zbuf, mtime=0.0)
         try:
             zfile.write(force_bytes(content.read()))
         finally:
diff --git a/storages/backends/s3boto3.py b/storages/backends/s3boto3.py
index 8c0162e51..eda7b250b 100644
--- a/storages/backends/s3boto3.py
+++ b/storages/backends/s3boto3.py
@@ -435,7 +435,7 @@ def _compress_content(self, content):
         #  This means each time a file is compressed it changes even if the other contents don't change
         #  For S3 this defeats detection of changes using MD5 sums on gzipped files
         #  Fixing the mtime at 0.0 at compression time avoids this problem
-        zfile = GzipFile(mode='wb', compresslevel=6, fileobj=zbuf, mtime=0.0)
+        zfile = GzipFile(mode='wb', fileobj=zbuf, mtime=0.0)
         try:
             zfile.write(force_bytes(content.read()))
         finally: