diff --git a/src/core/operations/ParseDateTime.mjs b/src/core/operations/ParseDateTime.mjs
index b8f2e08d..1fb6fb5e 100644
--- a/src/core/operations/ParseDateTime.mjs
+++ b/src/core/operations/ParseDateTime.mjs
@@ -72,7 +72,7 @@ class ParseDateTime extends Operation {
             "\nLeap year: " + date.isLeapYear() +
             "\nDays in this month: " + date.daysInMonth() +
             "\n\nDay of year: " + date.dayOfYear() +
-            "\nWeek number: " + date.weekYear() +
+            "\nWeek number: " + date.week() +
             "\nQuarter: " + date.quarter();
 
         return output;
diff --git a/tests/node/tests/operations.mjs b/tests/node/tests/operations.mjs
index 2124ad14..dc9f5e4a 100644
--- a/tests/node/tests/operations.mjs
+++ b/tests/node/tests/operations.mjs
@@ -656,7 +656,7 @@ Leap year: false
 Days in this month: 31
 
 Day of year: 187
-Week number: 2001
+Week number: 27
 Quarter: 3`;
         assert.strictEqual(result.toString(), expected);
     }),