diff --git a/Gemfile.lock b/Gemfile.lock
index 1b18dcd8..6c94b230 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -112,7 +112,7 @@ GEM
       activerecord (>= 5.a)
       database_cleaner-core (~> 2.0.0)
     database_cleaner-core (2.0.1)
-    date (3.3.3)
+    date (3.4.1)
     devise (4.9.2)
       bcrypt (~> 3.0)
       orm_adapter (~> 0.1)
@@ -185,12 +185,12 @@ GEM
     mini_portile2 (2.8.2)
     minitest (5.18.0)
     msgpack (1.7.1)
-    net-imap (0.3.4)
+    net-imap (0.3.9)
       date
       net-protocol
     net-pop (0.1.2)
       net-protocol
-    net-protocol (0.2.1)
+    net-protocol (0.2.2)
       timeout
     net-smtp (0.3.3)
       net-protocol
@@ -338,7 +338,7 @@ GEM
     thor (1.2.2)
     thread_safe (0.3.6)
     tilt (2.0.10)
-    timeout (0.3.2)
+    timeout (0.4.3)
     turbolinks (5.2.1)
       turbolinks-source (~> 5.2)
     turbolinks-source (5.2.0)