diff --git a/Gemfile.lock b/Gemfile.lock
index 04605dc..2346b11 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -12,7 +12,7 @@ GEM
       tins (~> 1.6)
     diff-lcs (1.3)
     docile (1.3.1)
-    fluentd (1.9.2)
+    fluentd (1.9.3)
       cool.io (>= 1.4.5, < 2.0.0)
       http_parser.rb (>= 0.5.1, < 0.7.0)
       msgpack (>= 1.3.1, < 2.0.0)