diff --git a/Gemfile.lock b/Gemfile.lock
index fa9ba26b2fa9d5ca453aa167b0301f0380cda6e3..40b0a9b56a5876e163f19d52bb783faf9264fcd9 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -154,7 +154,7 @@ GEM
       multi_xml (>= 0.5.2)
     i18n (1.14.7)
       concurrent-ruby (~> 1.0)
-    icalendar (2.11.0)
+    icalendar (2.11.1)
       base64
       ice_cube (~> 0.16)
       logger