diff --git a/Gemfile.lock b/Gemfile.lock
index 9b42fbe..ef1eb11 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -43,7 +43,7 @@ GEM
       rb-fsevent (~> 0.10, >= 0.10.3)
       rb-inotify (~> 0.9, >= 0.9.10)
     logger (1.7.0)
-    mail (2.9.0)
+    mail (2.9.1)
       logger
       mini_mime (>= 0.1.1)
       net-imap
@@ -54,14 +54,14 @@ GEM
     minitest (5.27.0)
     multi_json (1.21.1)
     mustermann (3.1.1)
-    net-imap (0.6.4)
+    net-imap (0.6.8)
       date
       net-protocol
     net-pop (0.1.2)
       net-protocol
     net-protocol (0.2.2)
       timeout
-    net-smtp (0.5.1)
+    net-smtp (0.5.2)
       net-protocol
     nio4r (2.7.5)
     pdf-core (0.10.0)