--- a/module.c
+++ b/module.c
@@ -209,7 +209,7 @@
     /* Year */
     PARSE_INTEGER(year, 4, "year")
 
-#if !PY_VERSION_AT_LEAST_36
+#if 1
     /* Python 3.6+ does this validation as part of datetime's C API
      * constructor. See
      * https://github.com/python/cpython/commit/b67f0967386a9c9041166d2bbe0a421bd81e10bc