diff --git a/Gemfile.lock b/Gemfile.lock
index f39e3210..fffd013a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -179,7 +179,7 @@ GEM
     pg (1.5.4)
     psych (5.1.2)
       stringio
-    puma (6.4.1)
+    puma (6.4.2)
       nio4r (~> 2.0)
     pundit (2.3.1)
       activesupport (>= 3.0.0)
diff --git a/gemset.nix b/gemset.nix
index 5935ec1a..132a0476 100644
--- a/gemset.nix
+++ b/gemset.nix
@@ -694,10 +694,10 @@
     platforms = [];
     source = {
       remotes = ["https://rubygems.org"];
-      sha256 = "090m7wrvqycicxav62dfbqcwsyqz7l5kgmbyl9h28ghd79wi5197";
+      sha256 = "0i2vaww6qcazj0ywva1plmjnj6rk23b01szswc5jhcq7s2cikd1y";
       type = "gem";
     };
-    version = "6.4.1";
+    version = "6.4.2";
   };
   pundit = {
     dependencies = ["activesupport"];