diff --git a/Gemfile.lock b/Gemfile.lock
index f3c4876..4cfcd93 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -26,12 +26,12 @@ GEM
     multi_json (1.15.0)
     mustermann (3.0.0)
       ruby2_keywords (~> 0.0.1)
-    nio4r (2.5.9)
+    nio4r (2.7.0)
     pry (0.12.2)
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
     public_suffix (5.0.1)
-    puma (5.6.7)
+    puma (5.6.8)
       nio4r (~> 2.0)
     rack (2.2.7)
     rack-cors (1.1.0)