diff --git a/Gemfile.lock b/Gemfile.lock
index 1340f33..74d75fb 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -76,7 +76,7 @@ GEM
     listen (3.2.1)
       rb-fsevent (~> 0.10, >= 0.10.3)
       rb-inotify (~> 0.9, >= 0.9.10)
-    lumberjack (1.1.1)
+    lumberjack (1.2.0)
     method_source (0.9.2)
     minitest (5.14.0)
     multi_json (1.14.1)