diff --git a/Gemfile.lock b/Gemfile.lock
index 283958270..7256c31fb 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -201,7 +201,7 @@ GEM
       rexml
     crass (1.0.6)
     daemons (1.4.1)
-    date (3.4.1)
+    date (3.5.1)
     debugger-ruby_core_source (1.3.8)
     declarative (0.0.20)
     deep_cloneable (3.2.0)
@@ -440,7 +440,7 @@ GEM
     net-http-digest_auth (1.4.1)
     net-http-persistent (4.0.1)
       connection_pool (~> 2.2)
-    net-imap (0.4.20)
+    net-imap (0.4.24)
       date
       net-protocol
     net-pop (0.1.2)
@@ -734,7 +734,7 @@ GEM
       rack (>= 1, < 3)
     thor (1.4.0)
     thread_safe (0.3.6)
-    timeout (0.4.3)
+    timeout (0.6.1)
     tins (1.31.0)
       sync
     to_regexp (0.2.1)