diff --git a/Gemfile.lock b/Gemfile.lock
index f44153b..de4c7e1 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -23,13 +23,13 @@ GEM
     mustermann (3.0.0)
       ruby2_keywords (~> 0.0.1)
     netrc (0.11.0)
-    nio4r (2.5.8)
+    nio4r (2.5.9)
     pry (0.10.4)
       coderay (~> 1.1.0)
       method_source (~> 0.8.1)
       slop (~> 3.4)
     public_suffix (4.0.6)
-    puma (5.6.4)
+    puma (6.4.0)
       nio4r (~> 2.0)
     rack (2.2.6.3)
     rack-protection (3.0.4)
diff --git a/vendor/cache/nio4r-2.5.8.gem b/vendor/cache/nio4r-2.5.8.gem
deleted file mode 100644
index f116b6f..0000000
Binary files a/vendor/cache/nio4r-2.5.8.gem and /dev/null differ
diff --git a/vendor/cache/nio4r-2.5.9.gem b/vendor/cache/nio4r-2.5.9.gem
new file mode 100644
index 0000000..e429011
Binary files /dev/null and b/vendor/cache/nio4r-2.5.9.gem differ
diff --git a/vendor/cache/puma-5.6.4.gem b/vendor/cache/puma-5.6.4.gem
deleted file mode 100644
index 275a82e..0000000
Binary files a/vendor/cache/puma-5.6.4.gem and /dev/null differ
diff --git a/vendor/cache/puma-6.4.0.gem b/vendor/cache/puma-6.4.0.gem
new file mode 100644
index 0000000..eac23ad
Binary files /dev/null and b/vendor/cache/puma-6.4.0.gem differ