diff --git a/Gemfile.lock b/Gemfile.lock
index d16a401..705ad4e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -168,8 +168,10 @@ GEM
     hashdiff (1.2.0)
     i18n (1.14.7)
       concurrent-ruby (~> 1.0)
-    icalendar (2.10.3)
+    icalendar (2.11.2)
+      base64
       ice_cube (~> 0.16)
+      logger
       ostruct
     ice_cube (0.17.0)
     image_processing (1.14.0)
@@ -243,7 +245,7 @@ GEM
       capybara (>= 1.1)
       rspec (>= 2.14)
     orm_adapter (0.5.0)
-    ostruct (0.6.1)
+    ostruct (0.6.2)
     parallel (1.27.0)
     parser (3.3.8.0)
       ast (~> 2.4.1)