diff --git a/radicale/auth/__init__.py b/radicale/auth/__init__.py
index dfc5f5646..15d91ec5f 100644
--- a/radicale/auth/__init__.py
+++ b/radicale/auth/__init__.py
@@ -42,9 +42,9 @@
 def load(configuration: "config.Configuration") -> "BaseAuth":
     """Load the authentication module chosen in configuration."""
     if configuration.get("auth", "type") == "none":
-        logger.warn("No user authentication is selected: '[auth] type=none' (insecure)")
+        logger.warning("No user authentication is selected: '[auth] type=none' (insecure)")
     if configuration.get("auth", "type") == "denyall":
-        logger.warn("All access is blocked by: '[auth] type=denyall'")
+        logger.warning("All access is blocked by: '[auth] type=denyall'")
     return utils.load_plugin(INTERNAL_TYPES, "auth", "Auth", BaseAuth,
                              configuration)