diff --git a/pypdf/_writer.py b/pypdf/_writer.py
index a2209c8f4..aa08e65ea 100644
--- a/pypdf/_writer.py
+++ b/pypdf/_writer.py
@@ -136,7 +136,7 @@ class ObjectDeletionFlag(enum.IntFlag):
 
 
 def _rolling_checksum(stream: BytesIO, blocksize: int = 65536) -> str:
-    hash = hashlib.md5()
+    hash = hashlib.md5(usedforsecurity=False)
     for block in iter(lambda: stream.read(blocksize), b""):
         hash.update(block)
     return hash.hexdigest()