diff --git a/Gemfile.lock b/Gemfile.lock
index 826eb6e..3e8b954 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -17,14 +17,14 @@ GEM
     minitest (5.14.4)
     mustermann (1.1.1)
       ruby2_keywords (~> 0.0.1)
-    nio4r (2.5.5)
+    nio4r (2.5.7)
     nokogiri (1.11.1)
       mini_portile2 (~> 2.5.0)
       racc (~> 1.4)
     pry (0.14.0)
       coderay (~> 1.1)
       method_source (~> 1.0)
-    puma (5.2.1)
+    puma (5.3.1)
       nio4r (~> 2.0)
     racc (1.5.2)
     rack (2.2.3)