diff --git a/Gemfile.lock b/Gemfile.lock
index dd08d1d..39fa1d6 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -141,7 +141,7 @@ GEM
     minitest (5.14.0)
     msgpack (1.3.1)
     nenv (0.3.0)
-    nio4r (2.5.2)
+    nio4r (2.5.8)
     nokogiri (1.10.8)
       mini_portile2 (~> 2.4.0)
     notiffany (0.1.3)
@@ -155,7 +155,7 @@ GEM
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
     public_suffix (4.0.3)
-    puma (4.3.11)
+    puma (4.3.12)
       nio4r (~> 2.0)
     rack (2.2.3)
     rack-protection (2.0.8.1)