diff --git a/Gemfile.lock b/Gemfile.lock
index 291e3e72..7e4970df 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -43,7 +43,7 @@ GEM
     kramdown (1.9.0)
     less (2.4.0)
       commonjs (~> 0.2.7)
-    libv8 (3.16.14.13)
+    libv8 (3.16.14.19)
     liquid (3.0.6)
     listen (3.0.5)
       rb-fsevent (>= 0.9.3)
@@ -62,8 +62,8 @@ GEM
     rouge (1.10.1)
     safe_yaml (1.0.4)
     sass (3.4.20)
-    therubyracer (0.12.2)
-      libv8 (~> 3.16.14.0)
+    therubyracer (0.12.3)
+      libv8 (~> 3.16.14.15)
       ref
     typhoeus (0.8.0)
       ethon (>= 0.8.0)