diff --git a/lib/openactive/models/event.rb b/lib/openactive/models/event.rb
index 12032ef..8b6f8e0 100644
--- a/lib/openactive/models/event.rb
+++ b/lib/openactive/models/event.rb
@@ -186,16 +186,14 @@ def type
         "string",
       ]
 
-      # @return [Date,DateTime,nil]
+      # @return [DateTime,nil]
       define_property :start_date, as: "startDate", types: [
-        "Date",
         "DateTime",
         "null",
       ]
 
-      # @return [Date,DateTime,nil]
+      # @return [DateTime,nil]
       define_property :end_date, as: "endDate", types: [
-        "Date",
         "DateTime",
         "null",
       ]
diff --git a/lib/openactive/models/event_series.rb b/lib/openactive/models/event_series.rb
index c2d64c1..35cfe75 100644
--- a/lib/openactive/models/event_series.rb
+++ b/lib/openactive/models/event_series.rb
@@ -8,16 +8,14 @@ def type
         "EventSeries"
       end
 
-      # @return [Date,DateTime,nil]
+      # @return [DateTime,nil]
       define_property :start_date, as: "startDate", types: [
-        "Date",
         "DateTime",
         "null",
       ]
 
-      # @return [Date,DateTime,nil]
+      # @return [DateTime,nil]
       define_property :end_date, as: "endDate", types: [
-        "Date",
         "DateTime",
         "null",
       ]
diff --git a/lib/openactive/models/on_demand_event.rb b/lib/openactive/models/on_demand_event.rb
index 01f5ae8..33b1074 100644
--- a/lib/openactive/models/on_demand_event.rb
+++ b/lib/openactive/models/on_demand_event.rb
@@ -54,16 +54,14 @@ def type
         "string",
       ]
 
-      # @return [Date,DateTime,nil]
+      # @return [DateTime,nil]
       define_property :start_date, as: "startDate", types: [
-        "Date",
         "DateTime",
         "null",
       ]
 
-      # @return [Date,DateTime,nil]
+      # @return [DateTime,nil]
       define_property :end_date, as: "endDate", types: [
-        "Date",
         "DateTime",
         "null",
       ]