diff --git a/Gemfile.lock b/Gemfile.lock
index d4557e5..95a4571 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -94,7 +94,7 @@ GEM
     concurrent-ruby (1.3.3)
     connection_pool (2.4.1)
     crass (1.0.6)
-    date (3.3.4)
+    date (3.4.1)
     diff-lcs (1.5.1)
     docile (1.4.1)
     drb (2.2.1)
@@ -182,7 +182,7 @@ GEM
     minitest (5.24.1)
     mutex_m (0.2.0)
     nenv (0.3.0)
-    net-imap (0.4.15)
+    net-imap (0.4.19)
       date
       net-protocol
     net-pop (0.1.2)
@@ -341,7 +341,7 @@ GEM
     stringio (3.1.1)
     strscan (3.1.0)
     thor (1.3.1)
-    timeout (0.4.1)
+    timeout (0.4.3)
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)
     unicode-display_width (2.5.0)