diff --git a/Gemfile.lock b/Gemfile.lock
index dd11386..f8aed37 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -104,7 +104,7 @@ GEM
     crass (1.0.6)
     csv (3.3.0)
     dalli (3.2.8)
-    date (3.4.0)
+    date (3.4.1)
     devise (4.9.3)
       bcrypt (~> 3.0)
       orm_adapter (~> 0.1)
@@ -187,7 +187,7 @@ GEM
     msgpack (1.7.2)
     multi_xml (0.7.1)
       bigdecimal (~> 3.1)
-    net-imap (0.5.1)
+    net-imap (0.5.7)
       date
       net-protocol
     net-pop (0.1.2)
@@ -352,7 +352,7 @@ GEM
       power_assert
     thor (1.3.2)
     tilt (2.4.0)
-    timeout (0.4.2)
+    timeout (0.4.3)
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)
     uglifier (4.2.1)