diff --git a/lib/add_to_calendar.rb b/lib/add_to_calendar.rb
index 6536c04..c3911ec 100755
--- a/lib/add_to_calendar.rb
+++ b/lib/add_to_calendar.rb
@@ -146,7 +146,7 @@ def hey_url
     end
 
     def office365_url
-      # Eg. https://outlook.live.com/calendar/0/deeplink/compose?path=/calendar/action/compose&rru=addevent&subject=Holly%27s%208th%20Birthday%21&startdt=2020-05-12T12:30:00Z&enddt=2020-05-12T16:00:00Z&body=Come%20join%20us%20for%20lots%20of%20fun%20%26%20cake%21%0A%0Ahttps%3A%2F%2Fwww.example.com%2Fevent-details&location=Flat%204%2C%20The%20Edge%2C%2038%20Smith-Dorrien%20St%2C%20London%2C%20N1%207GU
+      # Eg. https://outlook.office.com/calendar/0/action/compose?rru=addevent&subject=Holly%27s%208th%20Birthday%21&startdt=2020-05-12T12:30:00Z&enddt=2020-05-12T16:00:00Z&body=Come%20join%20us%20for%20lots%20of%20fun%20%26%20cake%21%0A%0Ahttps%3A%2F%2Fwww.example.com%2Fevent-details&location=Flat%204%2C%20The%20Edge%2C%2038%20Smith-Dorrien%20St%2C%20London%2C%20N1%207GU
       microsoft("office365")
     end
     
@@ -254,7 +254,7 @@ def microsoft(service)
         if service == "outlook.com"
           calendar_url = "https://outlook.live.com/calendar/0/deeplink/compose?path=/calendar/action/compose&rru=addevent"
         elsif service == "office365"
-          calendar_url = "https://outlook.office.com/calendar/0/deeplink/compose?path=/calendar/action/compose&rru=addevent"
+          calendar_url = "https://outlook.office.com/calendar/0/action/compose?rru=addevent"
         else
           raise MicrosoftServiceError, ":service must be 'outlook.com' or 'office365'. '#{service}' given"
         end
diff --git a/test/urls/office365_test.rb b/test/urls/office365_test.rb
index 438b501..9f99e73 100755
--- a/test/urls/office365_test.rb
+++ b/test/urls/office365_test.rb
@@ -31,9 +31,9 @@ def setup
     @location = "Flat 4, The Edge, 38 Smith-Dorrien St, London, N1 7GU"
     @description = "Come join us for lots of fun & cake!"
 
-    @url_with_defaults_required = "https://outlook.office.com/calendar/0/deeplink/compose?path=/calendar/action/compose&rru=addevent" +
-                                  "&subject=Holly%27s%208th%20Birthday%21" + 
-                                  "&startdt=#{@next_month_year}-#{@next_month_month}-#{@next_month_day}T#{@hour}:30:00Z" + 
+    @url_with_defaults_required = "https://outlook.office.com/calendar/0/action/compose?rru=addevent" +
+                                  "&subject=Holly%27s%208th%20Birthday%21" +
+                                  "&startdt=#{@next_month_year}-#{@next_month_month}-#{@next_month_day}T#{@hour}:30:00Z" +
                                   "&enddt=#{@next_month_year}-#{@next_month_month}-#{@next_month_day}T#{@hour+1}:30:00Z"
 
   end
@@ -50,9 +50,9 @@ def test_with_only_required_attributes
   def test_without_end_datetime
     # should set duration as 1 hour
     cal = AddToCalendar::URLs.new(start_datetime: Time.new(@next_month_year,@next_month_month,@next_month_day,@hour,30,00,0), title: @title, timezone: @timezone)
-    assert cal.office365_url == "https://outlook.office.com/calendar/0/deeplink/compose?path=/calendar/action/compose&rru=addevent" +
-                                 "&subject=Holly%27s%208th%20Birthday%21" + 
-                                 "&startdt=#{@next_month_year}-#{@next_month_month}-#{@next_month_day}T#{@hour}:30:00Z" + 
+    assert cal.office365_url == "https://outlook.office.com/calendar/0/action/compose?rru=addevent" +
+                                 "&subject=Holly%27s%208th%20Birthday%21" +
+                                 "&startdt=#{@next_month_year}-#{@next_month_month}-#{@next_month_day}T#{@hour}:30:00Z" +
                                  "&enddt=#{@next_month_year}-#{@next_month_month}-#{@next_month_day}T#{@hour+1}:30:00Z"
   end
 
@@ -63,9 +63,9 @@ def test_with_end_datetime
       title: @title, 
       timezone: @timezone
     )
-    assert cal.office365_url == "https://outlook.office.com/calendar/0/deeplink/compose?path=/calendar/action/compose&rru=addevent" +
-                                 "&subject=Holly%27s%208th%20Birthday%21" + 
-                                 "&startdt=#{@next_month_year}-#{@next_month_month}-#{@next_month_day}T#{@hour}:30:00Z" + 
+    assert cal.office365_url == "https://outlook.office.com/calendar/0/action/compose?rru=addevent" +
+                                 "&subject=Holly%27s%208th%20Birthday%21" +
+                                 "&startdt=#{@next_month_year}-#{@next_month_month}-#{@next_month_day}T#{@hour}:30:00Z" +
                                  "&enddt=#{@next_month_year}-#{@next_month_month}-#{@next_month_day}T#{@hour+4}:00:00Z"
   end
 
@@ -76,9 +76,9 @@ def test_with_end_datetime_crossing_over_midnight
       title: @title, 
       timezone: @timezone
     )
-    assert cal.office365_url == "https://outlook.office.com/calendar/0/deeplink/compose?path=/calendar/action/compose&rru=addevent" +
-                                 "&subject=Holly%27s%208th%20Birthday%21" + 
-                                 "&startdt=#{@next_month_year}-#{@next_month_month}-#{@next_month_day}T#{@hour}:30:00Z" + 
+    assert cal.office365_url == "https://outlook.office.com/calendar/0/action/compose?rru=addevent" +
+                                 "&subject=Holly%27s%208th%20Birthday%21" +
+                                 "&startdt=#{@next_month_year}-#{@next_month_month}-#{@next_month_day}T#{@hour}:30:00Z" +
                                  "&enddt=#{@next_month_year_plus_one_day}-#{@next_month_month_plus_one_day}-#{@next_month_day_plus_one_day}T#{@hour+4}:00:00Z"
   end
 
@@ -147,11 +147,11 @@ def test_with_all_attributes
       location: @location,
       description: @description,
     )
-    assert cal.office365_url == "https://outlook.office.com/calendar/0/deeplink/compose?path=/calendar/action/compose&rru=addevent" + 
-                                 "&subject=Holly%27s%208th%20Birthday%21" + 
-                                 "&startdt=#{@next_month_year}-#{@next_month_month}-#{@next_month_day}T#{@hour}:30:00Z" + 
-                                 "&enddt=#{@next_month_year}-#{@next_month_month}-#{@next_month_day}T#{@hour+4}:00:00Z" + 
-                                 "&body=Come%20join%20us%20for%20lots%20of%20fun%20%26%20cake%21%3Cbr%3E%3Cbr%3Ehttps%3A%2F%2Fwww.example.com%2Fevent-details" + 
+    assert cal.office365_url == "https://outlook.office.com/calendar/0/action/compose?rru=addevent" +
+                                 "&subject=Holly%27s%208th%20Birthday%21" +
+                                 "&startdt=#{@next_month_year}-#{@next_month_month}-#{@next_month_day}T#{@hour}:30:00Z" +
+                                 "&enddt=#{@next_month_year}-#{@next_month_month}-#{@next_month_day}T#{@hour+4}:00:00Z" +
+                                 "&body=Come%20join%20us%20for%20lots%20of%20fun%20%26%20cake%21%3Cbr%3E%3Cbr%3Ehttps%3A%2F%2Fwww.example.com%2Fevent-details" +
                                  "&location=Flat%204%2C%20The%20Edge%2C%2038%20Smith-Dorrien%20St%2C%20London%2C%20N1%207GU"
   end
 
@@ -168,9 +168,9 @@ def test_subject_converts_ampersand_to_and
       timezone: @timezone
     )
 
-    assert cal.office365_url == "https://outlook.office.com/calendar/0/deeplink/compose?path=/calendar/action/compose&rru=addevent" +
+    assert cal.office365_url == "https://outlook.office.com/calendar/0/action/compose?rru=addevent" +
                                   "&subject=Birthday%20and%20Sleepover" +
-                                  "&startdt=#{@next_month_year}-#{@next_month_month}-#{@next_month_day}T#{@hour}:30:00Z" + 
+                                  "&startdt=#{@next_month_year}-#{@next_month_month}-#{@next_month_day}T#{@hour}:30:00Z" +
                                   "&enddt=#{@next_month_year}-#{@next_month_month}-#{@next_month_day}T#{@hour+1}:30:00Z"
   end
 
@@ -182,12 +182,12 @@ def test_all_day_spans_single_day
       title: @title, 
       timezone: @timezone
     )
-    yahoo_url = "https://outlook.office.com/calendar/0/deeplink/compose?path=/calendar/action/compose&rru=addevent" +
-                "&subject=Holly%27s%208th%20Birthday%21" + 
-                "&startdt=#{@next_month_year}-#{@next_month_month}-#{@next_month_day}" + 
+    office365_url = "https://outlook.office.com/calendar/0/action/compose?rru=addevent" +
+                "&subject=Holly%27s%208th%20Birthday%21" +
+                "&startdt=#{@next_month_year}-#{@next_month_month}-#{@next_month_day}" +
                 "&enddt=#{@next_month_year_plus_one_day}-#{@next_month_month_plus_one_day}-#{@next_month_day_plus_one_day}" +
                 "&allday=true"
-    assert cal.office365_url == yahoo_url
+    assert cal.office365_url == office365_url
   end
 
   def test_all_day_spans_multiple_days
@@ -198,12 +198,12 @@ def test_all_day_spans_multiple_days
       title: @title, 
       timezone: @timezone
     )
-    yahoo_url = "https://outlook.office.com/calendar/0/deeplink/compose?path=/calendar/action/compose&rru=addevent" +
-                "&subject=Holly%27s%208th%20Birthday%21" + 
-                "&startdt=#{@next_month_year}-#{@next_month_month}-#{@next_month_day}" + 
+    office365_url = "https://outlook.office.com/calendar/0/action/compose?rru=addevent" +
+                "&subject=Holly%27s%208th%20Birthday%21" +
+                "&startdt=#{@next_month_year}-#{@next_month_month}-#{@next_month_day}" +
                 "&enddt=#{@next_month_year_plus_eight_days}-#{@next_month_month_plus_eight_days}-#{@next_month_day_plus_eight_days}" +
                 "&allday=true"
-    assert cal.office365_url == yahoo_url
+    assert cal.office365_url == office365_url
   end
 
   def test_all_day_without_end_date_is_single_day
@@ -213,12 +213,12 @@ def test_all_day_without_end_date_is_single_day
       title: @title, 
       timezone: @timezone
     )
-    yahoo_url = "https://outlook.office.com/calendar/0/deeplink/compose?path=/calendar/action/compose&rru=addevent" +
-                "&subject=Holly%27s%208th%20Birthday%21" + 
-                "&startdt=#{@next_month_year}-#{@next_month_month}-#{@next_month_day}" + 
+    office365_url = "https://outlook.office.com/calendar/0/action/compose?rru=addevent" +
+                "&subject=Holly%27s%208th%20Birthday%21" +
+                "&startdt=#{@next_month_year}-#{@next_month_month}-#{@next_month_day}" +
                 "&enddt=#{@next_month_year_plus_one_day}-#{@next_month_month_plus_one_day}-#{@next_month_day_plus_one_day}" +
                 "&allday=true"
-    assert cal.office365_url == yahoo_url
+    assert cal.office365_url == office365_url
   end
 
   def test_all_day_end_date_is_plus_one_from_end_date
@@ -229,12 +229,12 @@ def test_all_day_end_date_is_plus_one_from_end_date
       title: @title, 
       timezone: @timezone
     )
-    yahoo_url = "https://outlook.office.com/calendar/0/deeplink/compose?path=/calendar/action/compose&rru=addevent" +
-                "&subject=Holly%27s%208th%20Birthday%21" + 
-                "&startdt=#{@next_month_year}-#{@next_month_month}-#{@next_month_day}" + 
+    office365_url = "https://outlook.office.com/calendar/0/action/compose?rru=addevent" +
+                "&subject=Holly%27s%208th%20Birthday%21" +
+                "&startdt=#{@next_month_year}-#{@next_month_month}-#{@next_month_day}" +
                 "&enddt=#{@next_month_year_plus_one_day}-#{@next_month_month_plus_one_day}-#{@next_month_day_plus_one_day}" +
                 "&allday=true"
-    assert cal.office365_url == yahoo_url
+    assert cal.office365_url == office365_url
   end
   
 end