diff --git a/slacklinegroups/Gemfile.lock b/slacklinegroups/Gemfile.lock
index e793f8e..a42e359 100644
--- a/slacklinegroups/Gemfile.lock
+++ b/slacklinegroups/Gemfile.lock
@@ -164,7 +164,7 @@ GEM
       ruby-progressbar
     msgpack (1.3.3)
     nested_form (0.3.2)
-    nio4r (2.5.2)
+    nio4r (2.5.8)
     nokogiri (1.10.10)
       mini_portile2 (~> 2.4.0)
     orm_adapter (0.5.0)
@@ -173,7 +173,7 @@ GEM
       ast (~> 2.4.1)
     pg (1.2.3)
     public_suffix (4.0.5)
-    puma (4.3.5)
+    puma (4.3.9)
       nio4r (~> 2.0)
     rack (2.2.3)
     rack-pjax (1.1.0)