diff --git a/src/centpkg/__init__.py b/src/centpkg/__init__.py
index 1de8b59..185ab54 100644
--- a/src/centpkg/__init__.py
+++ b/src/centpkg/__init__.py
@@ -247,7 +247,7 @@ class Commands(Commands):
         except OSError as e:
             self.log.debug("Cannot read spec.", exc_info=e)
         if defined_patchn:
-            self.log.warn(
+            self.log.warning(
                 "centpkg defined %patchN compatibility shims to parse the spec file. "
                 "%patchN is obsolete, use %patch -P N instead."
             )