diff --git a/mailparser/utils.py b/mailparser/utils.py
index 302bfca..33b11a2 100644
--- a/mailparser/utils.py
+++ b/mailparser/utils.py
@@ -549,4 +549,4 @@ def write_sample(binary, payload, path, filename):  # pragma: no cover
             f.write(base64.b64decode(payload))
     else:
         with open(sample, "w") as f:
-            f.write(payload.encode("utf-8"))
+            f.write(payload)
diff --git a/mailparser/version.py b/mailparser/version.py
index c4bd4e6..87543da 100644
--- a/mailparser/version.py
+++ b/mailparser/version.py
@@ -17,7 +17,7 @@
 limitations under the License.
 """
 
-__version__ = "3.9.2"
+__version__ = "3.9.3"
 
 if __name__ == "__main__":
     print(__version__)