diff --git a/Gemfile.lock b/Gemfile.lock
index 146d54c..d18d12f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -136,7 +136,7 @@ GEM
       rexml
     kramdown-parser-gfm (1.1.0)
       kramdown (~> 2.0)
-    libv8 (7.3.492.27.1)
+    libv8 (8.4.255.0)
     liquid (4.0.3)
     listen (3.2.1)
       rb-fsevent (~> 0.10, >= 0.10.3)
@@ -147,8 +147,8 @@ GEM
     mercenary (0.4.0)
     method_source (1.0.0)
     mini_portile2 (2.4.0)
-    mini_racer (0.2.15)
-      libv8 (> 7.3)
+    mini_racer (0.3.1)
+      libv8 (~> 8.4.255)
     minima (2.5.1)
       jekyll (>= 3.5, < 5.0)
       jekyll-feed (~> 0.9)