diff --git a/Gemfile.lock b/Gemfile.lock
index 6152168..b8ce4d1 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -4,8 +4,8 @@ GEM
     json (2.3.1)
     mustermann (2.0.2)
       ruby2_keywords (~> 0.0.1)
-    nio4r (2.6.1)
-    puma (6.4.0)
+    nio4r (2.7.0)
+    puma (6.4.2)
       nio4r (~> 2.0)
     rack (2.2.4)
     rack-protection (2.2.3)