diff --git a/spec/utils_spec.py b/spec/utils_spec.py
index 1fd9cdd..4ec5839 100644
--- a/spec/utils_spec.py
+++ b/spec/utils_spec.py
@@ -127,7 +127,7 @@
                 "21110021000000000W": datetime(2111, 1, 21, 0, 0, 0),
                 "00021130000000000W": datetime(2002, 11, 30, 0, 0, 0),
                 # wrong year
-                "3022002094010020FF800009": datetime(3022, 01, 20, 0, 1, 0),
+                "3022002094010020FF800009": datetime(3022, 1, 20, 0, 1, 0),
                 "00001228230000000W": "time data '0-12-28 23:0:0' does not match format '%Y-%m-%d %H:%M:%S'",
 
             }