diff --git a/Gemfile.lock b/Gemfile.lock
index 67385e09..99635227 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -227,7 +227,7 @@ GEM
       concurrent-ruby (~> 1.0)
     i18n_data (0.17.1)
       simple_po_parser (~> 1.1)
-    icalendar (2.8.0)
+    icalendar (2.10.1)
       ice_cube (~> 0.16)
     ice_cube (0.16.4)
     image_processing (1.12.2)