diff --git a/Gemfile.lock b/Gemfile.lock
index 72fca6be1b5a0..9776fd9a4a1dd 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -106,6 +106,7 @@ GEM
     debug_inspector (1.1.0)
     diff-lcs (1.5.0)
     diffy (3.4.0)
+    digest (3.0.0)
     discourse-ember-rails (0.18.6)
       active_model_serializers
       ember-data-source (>= 1.0.0.beta.5)
@@ -231,7 +232,7 @@ GEM
       rack (>= 1.1.3)
     method_source (1.0.0)
     mini_mime (1.1.2)
-    mini_portile2 (2.8.0)
+    mini_portile2 (2.8.7)
     mini_racer (0.6.2)
       libv8-node (~> 16.10.0.0)
     mini_scheduler (0.13.0)
@@ -246,6 +247,18 @@ GEM
     multi_xml (0.6.0)
     multipart-post (2.1.1)
     mustache (1.1.1)
+    net-imap (0.2.4)
+      digest
+      net-protocol
+      strscan
+    net-pop (0.1.2)
+      net-protocol
+    net-protocol (0.2.2)
+      timeout
+    net-smtp (0.2.2)
+      digest
+      net-protocol
+      timeout
     nio4r (2.5.8)
     nokogiri (1.13.3)
       mini_portile2 (~> 2.8.0)
@@ -312,7 +325,7 @@ GEM
     puma (5.6.2)
       nio4r (~> 2.0)
     r2 (0.2.7)
-    racc (1.6.0)
+    racc (1.8.0)
     rack (2.2.3)
     rack-mini-profiler (3.0.0)
       rack (>= 1.2.0)
@@ -416,7 +429,7 @@ GEM
       nokogiri (>= 1.6.0)
     ruby2_keywords (0.0.5)
     rubyzip (2.3.2)
-    sanitize (6.0.0)
+    sanitize (6.1.2)
       crass (~> 1.0.2)
       nokogiri (>= 1.12.0)
     sassc (2.0.1)
@@ -452,9 +465,11 @@ GEM
       sprockets (>= 3.0.0)
     sshkey (2.0.0)
     stackprof (0.2.19)
+    strscan (3.1.0)
     test-prof (1.0.7)
     thor (1.2.1)
     tilt (2.0.10)
+    timeout (0.4.1)
     tzinfo (2.0.4)
       concurrent-ruby (~> 1.0)
     uglifier (4.2.0)
@@ -514,6 +529,7 @@ DEPENDENCIES
   cppjieba_rb
   css_parser
   diffy
+  digest (= 3.0.0)
   discourse-ember-rails (= 0.18.6)
   discourse-ember-source (~> 3.12.2)
   discourse-fonts
@@ -556,6 +572,9 @@ DEPENDENCIES
   mocha
   multi_json
   mustache
+  net-imap (~> 0.2.1)
+  net-pop (~> 0.1.1)
+  net-smtp (~> 0.2.1)
   nokogiri
   oj
   omniauth