diff --git a/Gemfile.lock b/Gemfile.lock
index 0fa35801f0..2b7c4a3fc8 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -154,7 +154,7 @@ GEM
     json (2.2.0)
     jwt (2.2.1)
     kgio (2.11.2)
-    libv8 (7.3.492.27.1)
+    libv8 (6.3.292.48.1)
     listen (3.1.5)
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
@@ -182,8 +182,8 @@ GEM
     method_source (0.9.2)
     mini_mime (1.0.1)
     mini_portile2 (2.4.0)
-    mini_racer (0.2.6)
-      libv8 (>= 6.9.411)
+    mini_racer (0.1.15)
+      libv8 (~> 6.3)
     mini_scheduler (0.11.0)
       sidekiq
     mini_sql (0.2.2)