diff --git a/app/src/main/kotlin/com/simplemobiletools/calendar/pro/fragments/MonthFragment.kt b/app/src/main/kotlin/com/simplemobiletools/calendar/pro/fragments/MonthFragment.kt
index dc8cb214b..63fa9b29f 100644
--- a/app/src/main/kotlin/com/simplemobiletools/calendar/pro/fragments/MonthFragment.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/calendar/pro/fragments/MonthFragment.kt
@@ -103,7 +103,7 @@ class MonthFragment : Fragment(), MonthlyCalendar {
                 contentDescription = text
 
                 if (activity != null) {
-                    setTextColor(activity!!.getProperTextColor())
+                    setTextColor(requireActivity().getProperTextColor())
                 }
             }
             updateDays(days)