diff --git a/Gemfile.lock b/Gemfile.lock
index 47e5f2b..409d1f5 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -85,7 +85,7 @@ GEM
       method_source (~> 0.9.0)
     public_suffix (2.0.5)
     rack (1.6.8)
-    rake (12.0.0)
+    rake (12.3.1)
     rb-fsevent (0.10.2)
     rb-inotify (0.9.10)
       ffi (>= 0.5.0, < 2)