diff --git a/Gemfile.lock b/Gemfile.lock
index ef52c22..1f3692f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -90,7 +90,7 @@ GEM
     concurrent-ruby (1.2.2)
     connection_pool (2.4.1)
     crass (1.0.6)
-    date (3.3.4)
+    date (3.4.1)
     drb (2.2.0)
       ruby2_keywords
     erubi (1.12.0)
@@ -114,7 +114,7 @@ GEM
     mini_mime (1.1.5)
     minitest (5.20.0)
     mutex_m (0.2.0)
-    net-imap (0.4.9)
+    net-imap (0.4.20)
       date
       net-protocol
     net-pop (0.1.2)
@@ -190,7 +190,7 @@ GEM
     sqlite3 (1.7.0-x86_64-linux)
     stringio (3.1.0)
     thor (1.3.0)
-    timeout (0.4.1)
+    timeout (0.4.3)
     turbo-rails (1.5.0)
       actionpack (>= 6.0.0)
       activejob (>= 6.0.0)