diff --git a/Gemfile.lock b/Gemfile.lock
index 52a7907..1acc6f6 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -7,11 +7,11 @@ GEM
     method_source (1.0.0)
     mustermann (1.1.1)
       ruby2_keywords (~> 0.0.1)
-    nio4r (2.5.4)
+    nio4r (2.5.8)
     pry (0.13.1)
       coderay (~> 1.1)
       method_source (~> 1.0)
-    puma (5.0.2)
+    puma (5.6.2)
       nio4r (~> 2.0)
     rack (2.2.3)
     rack-protection (2.1.0)