diff --git a/Gemfile.lock b/Gemfile.lock
index 5382bdc8..b985c102 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -111,9 +111,9 @@ GEM
       coderay (~> 1.1)
       method_source (~> 1.0)
       spoon (~> 0.0)
-    puma (6.3.1)
+    puma (6.4.0)
       nio4r (~> 2.0)
-    puma (6.3.1-java)
+    puma (6.4.0-java)
       nio4r (~> 2.0)
     racc (1.7.1)
     racc (1.7.1-java)