diff --git a/Gemfile.lock b/Gemfile.lock
index 36af26c0..6039feb1 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -127,7 +127,7 @@ GEM
       activerecord (>= 5.a)
       database_cleaner-core (~> 2.0.0)
     database_cleaner-core (2.0.1)
-    date (3.3.4)
+    date (3.4.1)
     devise (4.9.4)
       bcrypt (~> 3.0)
       orm_adapter (~> 0.1)
@@ -179,7 +179,7 @@ GEM
     msgpack (1.7.2)
     mutex_m (0.2.0)
     mysql2 (0.5.6)
-    net-imap (0.4.10)
+    net-imap (0.4.19)
       date
       net-protocol
     net-pop (0.1.2)
@@ -358,7 +358,7 @@ GEM
       tins (~> 1.0)
     thor (1.3.1)
     tilt (2.3.0)
-    timeout (0.4.1)
+    timeout (0.4.3)
     tins (1.32.1)
       sync
     turbolinks (5.2.1)