diff --git a/fluent-plugin-events/Gemfile.lock b/fluent-plugin-events/Gemfile.lock
index 78971a9..f73118e 100644
--- a/fluent-plugin-events/Gemfile.lock
+++ b/fluent-plugin-events/Gemfile.lock
@@ -23,7 +23,7 @@ GEM
       public_suffix (>= 2.0.2, < 6.0)
     bigdecimal (3.1.8)
     concurrent-ruby (1.1.10)
-    connection_pool (2.4.0)
+    connection_pool (2.4.1)
     cool.io (1.7.1)
     crack (1.0.0)
       bigdecimal
@@ -86,7 +86,7 @@ GEM
       ruby2_keywords (>= 0.0.5)
     msgpack (1.5.1)
     multipart-post (2.4.1)
-    net-http-persistent (4.0.2)
+    net-http-persistent (4.0.4)
       connection_pool (~> 2.2)
     power_assert (2.0.3)
     public_suffix (5.0.5)