diff --git a/Gemfile.lock b/Gemfile.lock
index 217cefb..324b3a8 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -75,6 +75,7 @@ GEM
     coderay (1.1.3)
     concurrent-ruby (1.1.10)
     crass (1.0.6)
+    date (3.4.1)
     debug (1.6.1)
       irb (>= 1.3.6)
       reline (>= 0.3.1)
@@ -100,11 +101,12 @@ GEM
     mini_portile2 (2.8.0)
     minitest (5.17.0)
     msgpack (1.4.5)
-    net-imap (0.3.1)
+    net-imap (0.3.9)
+      date
       net-protocol
     net-pop (0.1.2)
       net-protocol
-    net-protocol (0.1.3)
+    net-protocol (0.2.2)
       timeout
     net-smtp (0.3.2)
       net-protocol
@@ -189,7 +191,7 @@ GEM
     sqlite3 (1.4.2)
     thor (1.2.1)
     tilt (2.0.10)
-    timeout (0.3.0)
+    timeout (0.4.3)
     tzinfo (2.0.5)
       concurrent-ruby (~> 1.0)
     web-console (2.3.0)