diff --git a/src/Calculator/AboutFlyout.xaml.cpp b/src/Calculator/AboutFlyout.xaml.cpp
index 9a84a75..c89c7df 100644
--- a/src/Calculator/AboutFlyout.xaml.cpp
+++ b/src/Calculator/AboutFlyout.xaml.cpp
@@ -21,7 +21,7 @@ using namespace Windows::UI::Xaml::Controls::Primitives;
 using namespace Windows::UI::Xaml::Data;
 
 #ifndef BUILD_YEAR
-#define BUILD_YEAR 2020
+#define BUILD_YEAR 2021
 #endif
 
 AboutFlyout::AboutFlyout()