diff --git a/slacklinegroups/Gemfile.lock b/slacklinegroups/Gemfile.lock
index e793f8e..7680cc4 100644
--- a/slacklinegroups/Gemfile.lock
+++ b/slacklinegroups/Gemfile.lock
@@ -65,8 +65,8 @@ GEM
       minitest (~> 5.1)
       tzinfo (~> 1.1)
       zeitwerk (~> 2.2, >= 2.2.2)
-    addressable (2.7.0)
-      public_suffix (>= 2.0.2, < 5.0)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     ansi (1.5.0)
     ast (2.4.1)
     babel-source (5.8.35)
@@ -172,7 +172,7 @@ GEM
     parser (2.7.1.4)
       ast (~> 2.4.1)
     pg (1.2.3)
-    public_suffix (4.0.5)
+    public_suffix (5.0.0)
     puma (4.3.5)
       nio4r (~> 2.0)
     rack (2.2.3)