diff --git a/episode-344/mailer-before/Gemfile.lock b/episode-344/mailer-before/Gemfile.lock
index 8608d77c..0895fd40 100644
--- a/episode-344/mailer-before/Gemfile.lock
+++ b/episode-344/mailer-before/Gemfile.lock
@@ -46,7 +46,7 @@ GEM
     jquery-rails (2.0.2)
       railties (>= 3.2.0, < 5.0)
       thor (~> 0.14)
-    json (1.6.6)
+    json (1.8.6)
     mail (2.4.4)
       i18n (>= 0.4.0)
       mime-types (~> 1.16)
@@ -78,7 +78,7 @@ GEM
       rdoc (~> 3.4)
       thor (~> 0.14.6)
     rake (0.9.2.2)
-    rdoc (3.12)
+    rdoc (3.12.2)
       json (~> 1.4)
     sass (3.1.15)
     sass-rails (3.2.5)