diff --git a/Gemfile.lock b/Gemfile.lock
index e8ed099a..e0ae63ec 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -164,7 +164,7 @@ GEM
     minitest-stub-const (0.6)
     mocha (1.12.0)
     mysql2 (0.5.3)
-    nio4r (2.5.4)
+    nio4r (2.5.5)
     nokogiri (1.11.1)
       mini_portile2 (~> 2.5.0)
       racc (~> 1.4)
@@ -180,7 +180,7 @@ GEM
     parser (3.0.0.0)
       ast (~> 2.4.1)
     pg (1.2.3)
-    puma (5.2.0)
+    puma (5.2.1)
       nio4r (~> 2.0)
     racc (1.5.2)
     rack (2.2.3)