diff --git a/Gemfile.lock b/Gemfile.lock
index b1a7b66..bd9079d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -4,8 +4,8 @@ GEM
     diff-lcs (1.4.4)
     mustermann (1.1.1)
       ruby2_keywords (~> 0.0.1)
-    nio4r (2.5.7)
-    puma (5.3.2)
+    nio4r (2.5.8)
+    puma (5.6.4)
       nio4r (~> 2.0)
     rack (2.2.3)
     rack-protection (2.1.0)