diff --git a/setup.py b/setup.py
index 3b642d6b..5d2772a1 100644
--- a/setup.py
+++ b/setup.py
@@ -55,7 +55,7 @@
         "flask==3.0.3",
         "requests-toolbelt==1.0.0",
         "scalpl==0.4.2",
-        "crc32c==2.7.1",
+        "crc32c==2.9",
         "gunicorn==23.0.0",
         "waitress==3.0.0",
         "Werkzeug==3.0.4",