diff --git a/Gemfile.lock b/Gemfile.lock
index 1b7d655..6b22233 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -40,7 +40,7 @@ GEM
     listen (3.8.0)
       rb-fsevent (~> 0.10, >= 0.10.3)
       rb-inotify (~> 0.9, >= 0.9.10)
-    lumberjack (1.2.9)
+    lumberjack (1.2.10)
     method_source (1.0.0)
     mini_portile2 (2.8.4)
     nenv (0.3.0)