diff --git a/Gemfile.lock b/Gemfile.lock
index 4689418..f013ecc 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -31,8 +31,8 @@ GEM
     multi_xml (0.6.0)
     mustermann (1.1.1)
       ruby2_keywords (~> 0.0.1)
-    nio4r (2.5.8)
-    puma (5.6.4)
+    nio4r (2.5.9)
+    puma (5.6.7)
       nio4r (~> 2.0)
     rack (2.2.6.4)
     rack-protection (2.2.0)